diff --git a/internal/querycoord/task_scheduler_test.go b/internal/querycoord/task_scheduler_test.go
index 92c589285a..ffd383531f 100644
--- a/internal/querycoord/task_scheduler_test.go
+++ b/internal/querycoord/task_scheduler_test.go
@@ -151,7 +151,7 @@ func TestWatchQueryChannel_ClearEtcdInfoAfterAssignedNodeDown(t *testing.T) {
 	}
 	queryCoord.scheduler.Enqueue([]task{testTask})
 
-	time.Sleep(time.Second)
+	time.Sleep(100 * time.Millisecond)
 	queryCoord.cluster.stopNode(nodeID)
 	for {
 		newActiveTaskIDKeys, _, err := queryCoord.scheduler.client.LoadWithPrefix(activeTaskPrefix)
diff --git a/internal/querynode/query_service_test.go b/internal/querynode/query_service_test.go
index d368484b73..059a9098ab 100644
--- a/internal/querynode/query_service_test.go
+++ b/internal/querynode/query_service_test.go
@@ -160,7 +160,7 @@ func TestSearch_Search(t *testing.T) {
 	err = sendSearchRequest(node.queryNodeLoopCtx, DIM)
 	assert.NoError(t, err)
 
-	time.Sleep(1 * time.Second)
+	time.Sleep(100 * time.Millisecond)
 
 	err = node.Stop()
 	assert.NoError(t, err)
@@ -206,7 +206,7 @@ func TestSearch_SearchMultiSegments(t *testing.T) {
 	err = sendSearchRequest(node.queryNodeLoopCtx, DIM)
 	assert.NoError(t, err)
 
-	time.Sleep(1 * time.Second)
+	time.Sleep(100 * time.Millisecond)
 
 	err = node.Stop()
 	assert.NoError(t, err)
diff --git a/internal/rootcoord/proxy_manager_test.go b/internal/rootcoord/proxy_manager_test.go
index a8f6792c52..aabae35756 100644
--- a/internal/rootcoord/proxy_manager_test.go
+++ b/internal/rootcoord/proxy_manager_test.go
@@ -88,7 +88,7 @@ func TestProxyManager(t *testing.T) {
 
 	_, err = cli.Delete(ctx, k1)
 	assert.Nil(t, err)
-	time.Sleep(time.Second)
+	time.Sleep(100 * time.Millisecond)
 	pm.Stop()
-	time.Sleep(time.Second)
+	time.Sleep(100 * time.Millisecond)
 }