--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -5,7 +5,7 @@ project(pyncnn)
 set(PACKAGE_VERSION ${NCNN_VERSION_STRING})
 add_definitions(-DVERSION_INFO="${PACKAGE_VERSION}")
 
-set( CMAKE_CXX_STANDARD 11 )
+set( CMAKE_CXX_STANDARD 14 )
 set( CMAKE_CXX_STANDARD_REQUIRED ON )
 
 if(CMAKE_CXX_COMPILER_ARCHITECTURE_ID MATCHES "ARM64")