diff --git a/drogon_ctl/templates/cmake.csp b/drogon_ctl/templates/cmake.csp
index 47ef1159..9be08023 100644
--- a/drogon_ctl/templates/cmake.csp
+++ b/drogon_ctl/templates/cmake.csp
@@ -9,12 +9,9 @@ endif()
 IF (CMAKE_SYSTEM_NAME MATCHES "Linux")
     EXEC_PROGRAM (gcc ARGS "--version | grep '^gcc'|awk '{print $3}' | sed s'/)//g' | sed s'/-.*//g'" OUTPUT_VARIABLE version)
     MESSAGE(STATUS "This is gcc version:: " ${version})
-    if(version LESS 4.9.0)
+    if(version LESS 5.4.0)
         MESSAGE(STATUS "gcc is too old")
         stop()
-    elseif (version LESS 6.1.0)
-        MESSAGE(STATUS "c++11")
-        set(CMAKE_CXX_STD_FLAGS c++11)
     elseif(version LESS 7.1.0)
         set(CMAKE_CXX_STD_FLAGS c++14)
         MESSAGE(STATUS "c++14")
@@ -24,7 +21,7 @@ IF (CMAKE_SYSTEM_NAME MATCHES "Linux")
         MESSAGE(STATUS "c++17")
     endif()
 else()
-    set(CMAKE_CXX_STD_FLAGS c++11)
+    set(CMAKE_CXX_STD_FLAGS c++17)
 endif()
 
 if(CMAKE_BUILD_TYPE STREQUAL "")