diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 308ef2eb..581d32f1 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -16,11 +16,13 @@ jobs:
         include:
         - compiler_driver: g++-9
           compiler_prefix: /usr/bin
+          cxx_flags_extra: "-Werror -Wall"
         - compiler_driver: g++-10
           compiler_prefix: /usr/bin
+          cxx_flags_extra: "-Werror -Wall"
         - compiler_driver: clang++
           compiler_prefix: /usr/bin
-          cxx_flags_extra: "-stdlib=libc++"
+          cxx_flags_extra: "-stdlib=libc++ -Werror -Wall"
         - compiler_driver: icpx
           compiler_prefix: /opt/intel/oneapi/compiler/latest/linux/bin
           # To get new URL, look here: