diff --git a/rockspec/apisix-master-0.rockspec b/rockspec/apisix-master-0.rockspec
index c1db28f3..f40bf003 100644
--- a/rockspec/apisix-master-0.rockspec
+++ b/rockspec/apisix-master-0.rockspec
@@ -51,7 +51,7 @@ dependencies = {
     "luafilesystem = 1.7.0-2",
     "api7-lua-tinyyaml = 0.4.2",
     "nginx-lua-prometheus = 0.20210206",
-    "jsonschema = 0.9.5",
+    "jsonschema = 0.9.6",
     "lua-resty-ipmatcher = 0.6.1",
     "lua-resty-kafka = 0.07",
     "lua-resty-logger-socket = 2.0-0",
diff --git a/t/admin/health-check.t b/t/admin/health-check.t
index f4246f37..d26e9242 100644
--- a/t/admin/health-check.t
+++ b/t/admin/health-check.t
@@ -169,7 +169,7 @@ passed
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: property \"active\" validation failed: property \"healthy\" validation failed: property \"successes\" validation failed: expected 255 to be smaller than 254"}
+{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: property \"active\" validation failed: property \"healthy\" validation failed: property \"successes\" validation failed: expected 255 to be at most 254"}
 
 
 
@@ -195,7 +195,7 @@ passed
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: property \"active\" validation failed: property \"healthy\" validation failed: property \"successes\" validation failed: expected 0 to be greater than 1"}
+{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: property \"active\" validation failed: property \"healthy\" validation failed: property \"successes\" validation failed: expected 0 to be at least 1"}
 
 
 
@@ -221,7 +221,7 @@ passed
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: property \"passive\" validation failed: property \"unhealthy\" validation failed: property \"http_statuses\" validation failed: failed to validate item 2: expected 600 to be smaller than 599"}
+{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: property \"passive\" validation failed: property \"unhealthy\" validation failed: property \"http_statuses\" validation failed: failed to validate item 2: expected 600 to be at most 599"}
 
 
 
@@ -436,7 +436,7 @@ passed
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: object matches none of the requireds: [\"active\"] or [\"active\",\"passive\"]"}
+{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: object matches none of the required: [\"active\"] or [\"active\",\"passive\"]"}
 
 
 
diff --git a/t/admin/routes.t b/t/admin/routes.t
index 069b7ca9..a16ccdbd 100644
--- a/t/admin/routes.t
+++ b/t/admin/routes.t
@@ -433,7 +433,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"service_id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"service_id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -541,7 +541,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -568,7 +568,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream_id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"upstream_id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
diff --git a/t/admin/routes3.t b/t/admin/routes3.t
index 02fbc871..d9eb4f91 100644
--- a/t/admin/routes3.t
+++ b/t/admin/routes3.t
@@ -183,7 +183,7 @@ passed
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"remote_addr\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"remote_addr\" validation failed: object matches none of the required"}
 
 
 
diff --git a/t/admin/services-string-id.t b/t/admin/services-string-id.t
index e42be016..15160c5a 100644
--- a/t/admin/services-string-id.t
+++ b/t/admin/services-string-id.t
@@ -433,7 +433,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -460,7 +460,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -487,7 +487,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream_id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"upstream_id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
diff --git a/t/admin/services.t b/t/admin/services.t
index 8493b517..d0ca8989 100644
--- a/t/admin/services.t
+++ b/t/admin/services.t
@@ -447,7 +447,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -474,7 +474,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -501,7 +501,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream_id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"upstream_id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
diff --git a/t/admin/upstream-array-nodes.t b/t/admin/upstream-array-nodes.t
index 27966121..d6cfaf01 100644
--- a/t/admin/upstream-array-nodes.t
+++ b/t/admin/upstream-array-nodes.t
@@ -351,7 +351,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -383,7 +383,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -415,7 +415,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -447,6 +447,6 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
diff --git a/t/admin/upstream.t b/t/admin/upstream.t
index 01e21622..96dcef3c 100644
--- a/t/admin/upstream.t
+++ b/t/admin/upstream.t
@@ -344,7 +344,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -374,7 +374,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -506,7 +506,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
@@ -536,7 +536,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"nodes\" validation failed: object matches none of the required"}
 --- no_error_log
 [error]
 
diff --git a/t/admin/upstream2.t b/t/admin/upstream2.t
index d44e16b6..e7b86703 100644
--- a/t/admin/upstream2.t
+++ b/t/admin/upstream2.t
@@ -290,6 +290,6 @@ no valid upstream node
 GET /t
 --- error_code: 400
 --- response_body_like eval
-qr/{"error_msg":"invalid configuration: property \\\"timeout\\\" validation failed: property \\\"(connect|send|read)\\\" validation failed: expected 0 to be strictly greater than 0"}/
+qr/{"error_msg":"invalid configuration: property \\\"timeout\\\" validation failed: property \\\"(connect|send|read)\\\" validation failed: expected 0 to be greater than 0"}/
 --- no_error_log
 [error]
diff --git a/t/admin/upstream3.t b/t/admin/upstream3.t
index 51142a4f..9796a05e 100644
--- a/t/admin/upstream3.t
+++ b/t/admin/upstream3.t
@@ -88,7 +88,7 @@ __DATA__
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"retry_timeout\" validation failed: expected -1 to be greater than 0"}
+{"error_msg":"invalid configuration: property \"retry_timeout\" validation failed: expected -1 to be at least 0"}
 
 
 
diff --git a/t/admin/upstream4.t b/t/admin/upstream4.t
index c829fd28..1fc30048 100644
--- a/t/admin/upstream4.t
+++ b/t/admin/upstream4.t
@@ -142,7 +142,7 @@ passed
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the requireds"}
+{"error_msg":"invalid configuration: property \"id\" validation failed: object matches none of the required"}
 
 
 
@@ -197,7 +197,7 @@ passed
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"retries\" validation failed: expected -1 to be greater than 0"}
+{"error_msg":"invalid configuration: property \"retries\" validation failed: expected -1 to be at least 0"}
 
 
 
diff --git a/t/node/healthcheck-passive.t b/t/node/healthcheck-passive.t
index dd34c175..be85ecc9 100644
--- a/t/node/healthcheck-passive.t
+++ b/t/node/healthcheck-passive.t
@@ -164,4 +164,4 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: object matches none of the requireds: [\"active\"] or [\"active\",\"passive\"]"}
+{"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: object matches none of the required: [\"active\"] or [\"active\",\"passive\"]"}
diff --git a/t/node/healthcheck.t b/t/node/healthcheck.t
index ff69f30f..f11f134c 100644
--- a/t/node/healthcheck.t
+++ b/t/node/healthcheck.t
@@ -742,7 +742,7 @@ qr/unhealthy TCP increment.*foo.com.*127.0.0.1:1988/
 --- request
 GET /t
 --- response_body_like eval
-qr/expected 0 to be greater than 1/
+qr/expected 0 to be at least 1/
 --- error_code chomp
 400
 
@@ -791,7 +791,7 @@ qr/expected 0 to be greater than 1/
 --- request
 GET /t
 --- response_body_like eval
-qr/expected 65536 to be smaller than 65535/
+qr/expected 65536 to be at most 65535/
 --- error_code chomp
 400
 
diff --git a/t/node/upstream-keepalive-pool.t b/t/node/upstream-keepalive-pool.t
index 3d2e762a..1818ecca 100644
--- a/t/node/upstream-keepalive-pool.t
+++ b/t/node/upstream-keepalive-pool.t
@@ -72,7 +72,7 @@ __DATA__
     }
 --- error_code: 400
 --- response_body
-{"error_msg":"invalid configuration: property \"keepalive_pool\" validation failed: property \"size\" validation failed: expected 0 to be greater than 1"}
+{"error_msg":"invalid configuration: property \"keepalive_pool\" validation failed: property \"size\" validation failed: expected 0 to be at least 1"}
 
 
 
diff --git a/t/plugin/api-breaker.t b/t/plugin/api-breaker.t
index 2858f5a4..1dc480cf 100644
--- a/t/plugin/api-breaker.t
+++ b/t/plugin/api-breaker.t
@@ -178,7 +178,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin api-breaker err: property \"break_response_code\" validation failed: expected 199 to be greater than 200"}
+{"error_msg":"failed to check the configuration of plugin api-breaker err: property \"break_response_code\" validation failed: expected 199 to be at least 200"}
 --- no_error_log
 [error]
 
diff --git a/t/plugin/authz-keycloak.t b/t/plugin/authz-keycloak.t
index 5fce3dd5..add20e5d 100644
--- a/t/plugin/authz-keycloak.t
+++ b/t/plugin/authz-keycloak.t
@@ -208,7 +208,7 @@ done
 --- request
 GET /t
 --- response_body
-allOf 1 failed: object matches none of the requireds: ["discovery"] or ["token_endpoint"]
+allOf 1 failed: object matches none of the required: ["discovery"] or ["token_endpoint"]
 done
 --- no_error_log
 [error]
@@ -231,7 +231,7 @@ done
 --- request
 GET /t
 --- response_body
-allOf 2 failed: object matches none of the requireds: ["client_id"] or ["audience"]
+allOf 2 failed: object matches none of the required: ["client_id"] or ["audience"]
 done
 --- no_error_log
 [error]
@@ -258,7 +258,7 @@ done
 --- request
 GET /t
 --- response_body
-allOf 3 failed: object matches none of the requireds
+allOf 3 failed: object matches none of the required
 done
 --- no_error_log
 [error]
diff --git a/t/plugin/batch-requests.t b/t/plugin/batch-requests.t
index 415369ea..8df3aa94 100644
--- a/t/plugin/batch-requests.t
+++ b/t/plugin/batch-requests.t
@@ -199,7 +199,7 @@ passed
 GET /aggregate
 --- error_code: 400
 --- response_body
-{"error_msg":"bad request body: object matches none of the requireds: [\"pipeline\"]"}
+{"error_msg":"bad request body: object matches none of the required: [\"pipeline\"]"}
 --- no_error_log
 [error]
 
@@ -1003,7 +1003,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body eval
-qr/\{"error_msg":"invalid configuration: property \\"max_body_size\\" validation failed: expected 0 to be strictly greater than 0"\}/
+qr/\{"error_msg":"invalid configuration: property \\"max_body_size\\" validation failed: expected 0 to be greater than 0"\}/
 --- no_error_log
 [error]
 
diff --git a/t/plugin/client-control.t b/t/plugin/client-control.t
index 02f74f60..64b8ce9b 100644
--- a/t/plugin/client-control.t
+++ b/t/plugin/client-control.t
@@ -144,7 +144,7 @@ POST /hello
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin client-control err: property \"max_body_size\" validation failed: expected -1 to be greater than 0"}
+{"error_msg":"failed to check the configuration of plugin client-control err: property \"max_body_size\" validation failed: expected -1 to be at least 0"}
 
 
 
diff --git a/t/plugin/example.t b/t/plugin/example.t
index 8e960911..70a9d617 100644
--- a/t/plugin/example.t
+++ b/t/plugin/example.t
@@ -87,7 +87,7 @@ done
 --- request
 GET /t
 --- response_body
-property "i" validation failed: expected -1 to be greater than 0
+property "i" validation failed: expected -1 to be at least 0
 done
 --- no_error_log
 [error]
diff --git a/t/plugin/gzip.t b/t/plugin/gzip.t
index c7688318..93d7db40 100644
--- a/t/plugin/gzip.t
+++ b/t/plugin/gzip.t
@@ -537,10 +537,10 @@ Vary: upstream, Accept-Encoding
     }
 }
 --- response_body
-{"error_msg":"failed to check the configuration of plugin gzip err: property \"types\" validation failed: object matches none of the requireds"}
-{"error_msg":"failed to check the configuration of plugin gzip err: property \"min_length\" validation failed: expected 0 to be greater than 1"}
-{"error_msg":"failed to check the configuration of plugin gzip err: property \"comp_level\" validation failed: expected 10 to be smaller than 9"}
+{"error_msg":"failed to check the configuration of plugin gzip err: property \"types\" validation failed: object matches none of the required"}
+{"error_msg":"failed to check the configuration of plugin gzip err: property \"min_length\" validation failed: expected 0 to be at least 1"}
+{"error_msg":"failed to check the configuration of plugin gzip err: property \"comp_level\" validation failed: expected 10 to be at most 9"}
 {"error_msg":"failed to check the configuration of plugin gzip err: property \"http_version\" validation failed: matches none of the enum values"}
-{"error_msg":"failed to check the configuration of plugin gzip err: property \"buffers\" validation failed: property \"number\" validation failed: expected 0 to be greater than 1"}
-{"error_msg":"failed to check the configuration of plugin gzip err: property \"buffers\" validation failed: property \"size\" validation failed: expected 0 to be greater than 1"}
+{"error_msg":"failed to check the configuration of plugin gzip err: property \"buffers\" validation failed: property \"number\" validation failed: expected 0 to be at least 1"}
+{"error_msg":"failed to check the configuration of plugin gzip err: property \"buffers\" validation failed: property \"size\" validation failed: expected 0 to be at least 1"}
 {"error_msg":"failed to check the configuration of plugin gzip err: property \"vary\" validation failed: wrong type: expected boolean, got number"}
diff --git a/t/plugin/ip-restriction.t b/t/plugin/ip-restriction.t
index dd20e0a1..d2cbc75c 100644
--- a/t/plugin/ip-restriction.t
+++ b/t/plugin/ip-restriction.t
@@ -86,7 +86,7 @@ GET /t
 --- request
 GET /t
 --- response_body_like eval
-qr/failed to validate item 1: object matches none of the requireds/
+qr/failed to validate item 1: object matches none of the required/
 --- no_error_log
 [error]
 
@@ -115,7 +115,7 @@ qr/failed to validate item 1: object matches none of the requireds/
 --- request
 GET /t
 --- response_body_like eval
-qr/failed to validate item 1: object matches none of the requireds/
+qr/failed to validate item 1: object matches none of the required/
 --- no_error_log
 [error]
 
@@ -567,7 +567,7 @@ GET /hello
 --- request
 GET /t
 --- response_body_like eval
-qr/failed to validate item 1: object matches none of the requireds/
+qr/failed to validate item 1: object matches none of the required/
 --- no_error_log
 [error]
 
diff --git a/t/plugin/kafka-logger2.t b/t/plugin/kafka-logger2.t
index c78da6f5..77bcbbff 100644
--- a/t/plugin/kafka-logger2.t
+++ b/t/plugin/kafka-logger2.t
@@ -359,8 +359,8 @@ qr/not found topic, retryable: true, topic: undefined_topic, partition_id: -1/
 --- response_body
 property "broker_list" validation failed: expect object to have at least 1 properties
 property "broker_list" validation failed: failed to validate 127.0.0.1 (matching ".*"): wrong type: expected integer, got string
-property "broker_list" validation failed: failed to validate 127.0.0.1 (matching ".*"): expected 0 to be greater than 1
-property "broker_list" validation failed: failed to validate 127.0.0.1 (matching ".*"): expected 65536 to be smaller than 65535
+property "broker_list" validation failed: failed to validate 127.0.0.1 (matching ".*"): expected 0 to be at least 1
+property "broker_list" validation failed: failed to validate 127.0.0.1 (matching ".*"): expected 65536 to be at most 65535
 
 
 
diff --git a/t/plugin/limit-conn.t b/t/plugin/limit-conn.t
index fe480f65..e5b89344 100644
--- a/t/plugin/limit-conn.t
+++ b/t/plugin/limit-conn.t
@@ -428,7 +428,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" validation failed: expected -1 to be strictly greater than 0"}
+{"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" validation failed: expected -1 to be greater than 0"}
 --- no_error_log
 [error]
 
@@ -511,7 +511,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" validation failed: expected -1 to be strictly greater than 0"}
+{"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" validation failed: expected -1 to be greater than 0"}
 --- no_error_log
 [error]
 
@@ -980,8 +980,8 @@ GET /test_concurrency
 --- request
 GET /t
 --- response_body
-property "conn" validation failed: expected 0 to be strictly greater than 0
-property "default_conn_delay" validation failed: expected 0 to be strictly greater than 0
+property "conn" validation failed: expected 0 to be greater than 0
+property "default_conn_delay" validation failed: expected 0 to be greater than 0
 done
 --- no_error_log
 [error]
diff --git a/t/plugin/limit-count.t b/t/plugin/limit-count.t
index b04642a6..671443dc 100644
--- a/t/plugin/limit-count.t
+++ b/t/plugin/limit-count.t
@@ -268,7 +268,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be strictly greater than 0"}
+{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be greater than 0"}
 --- no_error_log
 [error]
 
@@ -310,7 +310,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be strictly greater than 0"}
+{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be greater than 0"}
 --- no_error_log
 [error]
 
@@ -390,7 +390,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be strictly greater than 0"}
+{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be greater than 0"}
 --- no_error_log
 [error]
 
@@ -431,7 +431,7 @@ GET /t
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be strictly greater than 0"}
+{"error_msg":"failed to check the configuration of plugin limit-count err: property \"count\" validation failed: expected -100 to be greater than 0"}
 --- no_error_log
 [error]
 
@@ -1345,7 +1345,7 @@ passed
 --- request
 GET /t
 --- response_body eval
-qr/property \"count\" validation failed: expected 0 to be strictly greater than 0/
+qr/property \"count\" validation failed: expected 0 to be greater than 0/
 --- no_error_log
 [error]
 
@@ -1367,6 +1367,6 @@ qr/property \"count\" validation failed: expected 0 to be strictly greater than
 --- request
 GET /t
 --- response_body eval
-qr/property \"time_window\" validation failed: expected 0 to be strictly greater than 0/
+qr/property \"time_window\" validation failed: expected 0 to be greater than 0/
 --- no_error_log
 [error]
diff --git a/t/plugin/limit-req.t b/t/plugin/limit-req.t
index d0634cb8..976fb2ce 100644
--- a/t/plugin/limit-req.t
+++ b/t/plugin/limit-req.t
@@ -290,7 +290,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin limit-req err: property \"rate\" validation failed: expected -1 to be strictly greater than 0"}
+{"error_msg":"failed to check the configuration of plugin limit-req err: property \"rate\" validation failed: expected -1 to be greater than 0"}
 --- no_error_log
 [error]
 
@@ -756,6 +756,6 @@ passed
 --- request
 GET /t
 --- response_body eval
-qr/property \"rate\" validation failed: expected 0 to be strictly greater than 0/
+qr/property \"rate\" validation failed: expected 0 to be greater than 0/
 --- no_error_log
 [error]
diff --git a/t/plugin/proxy-mirror.t b/t/plugin/proxy-mirror.t
index a5522804..2c0e2e8e 100644
--- a/t/plugin/proxy-mirror.t
+++ b/t/plugin/proxy-mirror.t
@@ -482,7 +482,7 @@ passed
 GET /t
 --- error_code: 400
 --- response_body
-{"error_msg":"failed to check the configuration of plugin proxy-mirror err: property \"sample_ratio\" validation failed: expected 10 to be smaller than 1"}
+{"error_msg":"failed to check the configuration of plugin proxy-mirror err: property \"sample_ratio\" validation failed: expected 10 to be at most 1"}
 --- no_error_log
 [error]
 
diff --git a/t/plugin/real-ip.t b/t/plugin/real-ip.t
index 45e9de7f..5df38137 100644
--- a/t/plugin/real-ip.t
+++ b/t/plugin/real-ip.t
@@ -83,7 +83,7 @@ __DATA__
 }
 --- response_body
 {"error_msg":"failed to check the configuration of plugin real-ip err: property \"source\" is required"}
-{"error_msg":"failed to check the configuration of plugin real-ip err: property \"trusted_addresses\" validation failed: failed to validate item 1: object matches none of the requireds"}
+{"error_msg":"failed to check the configuration of plugin real-ip err: property \"trusted_addresses\" validation failed: failed to validate item 1: object matches none of the required"}
 {"error_msg":"failed to check the configuration of plugin real-ip err: invalid ip address: ::1\/129"}
 
 
diff --git a/t/plugin/request-validation.t b/t/plugin/request-validation.t
index 2893d085..92f81089 100644
--- a/t/plugin/request-validation.t
+++ b/t/plugin/request-validation.t
@@ -62,7 +62,7 @@ done
 --- request
 GET /t
 --- response_body_like eval
-qr/object matches none of the requireds/
+qr/object matches none of the required/
 --- no_error_log
 [error]
 
@@ -1652,7 +1652,7 @@ qr/string too long/
 --- request
 GET /t
 --- response_body_like eval
-qr/object matches none of the requireds/
+qr/object matches none of the required/
 --- error_code: 400
 --- no_error_log
 [error]
@@ -1776,7 +1776,7 @@ qr/opentracing/
 --- request
 GET /t
 --- response_body_like eval
-qr/expected 10000 to be smaller than 599/
+qr/expected 10000 to be at most 599/
 --- error_code: 400
 --- no_error_log
 [error]
@@ -1813,7 +1813,7 @@ qr/expected 10000 to be smaller than 599/
 --- request
 GET /t
 --- response_body_like eval
-qr/object matches none of the requireds/
+qr/object matches none of the required/
 --- error_code: 400
 --- no_error_log
 [error]
diff --git a/t/plugin/response-rewrite.t b/t/plugin/response-rewrite.t
index bdc54cae..ebde0d05 100644
--- a/t/plugin/response-rewrite.t
+++ b/t/plugin/response-rewrite.t
@@ -79,7 +79,7 @@ done
 --- request
 GET /t
 --- response_body
-property "status_code" validation failed: expected 599 to be smaller than 598
+property "status_code" validation failed: expected 599 to be at most 598
 --- no_error_log
 [error]
 
diff --git a/t/plugin/zipkin.t b/t/plugin/zipkin.t
index 5465ac0e..04b587ab 100644
--- a/t/plugin/zipkin.t
+++ b/t/plugin/zipkin.t
@@ -62,7 +62,7 @@ done
 --- request
 GET /t
 --- response_body
-property "sample_ratio" validation failed: expected -0.1 to be greater than 1e-05
+property "sample_ratio" validation failed: expected -0.1 to be at least 1e-05
 done
 --- no_error_log
 [error]
@@ -85,7 +85,7 @@ done
 --- request
 GET /t
 --- response_body
-property "sample_ratio" validation failed: expected 2 to be smaller than 1
+property "sample_ratio" validation failed: expected 2 to be at most 1
 done
 --- no_error_log
 [error]