diff --git a/.github/workflows/on_PR_meson.yaml b/.github/workflows/on_PR_meson.yaml
index ba5d1c64..a5a9a07e 100644
--- a/.github/workflows/on_PR_meson.yaml
+++ b/.github/workflows/on_PR_meson.yaml
@@ -46,7 +46,7 @@ jobs:
       - uses: ilammy/msvc-dev-cmd@v1
       - name: Sanity Checks
         run: |
-          meson setup "${{github.workspace}}/build" --wrap-mode=${{matrix.deps}} -Ddefault_library=${{matrix.type}} -Dwarning_level=3
+          meson setup "${{github.workspace}}/build" --wrap-mode=${{matrix.deps}} -Ddefault_library=${{matrix.type}} -Dwarning_level=3 -Dcpp_std=c++20
           meson compile -C "${{github.workspace}}/build" --verbose
           meson test -C "${{github.workspace}}/build" --verbose
 
@@ -66,6 +66,6 @@ jobs:
 
       - name: Compile
         run: |
-          meson setup "${{github.workspace}}/build" --wrap-mode=${{matrix.deps}} -Ddefault_library=${{matrix.type}} -Dwarning_level=3
+          meson setup "${{github.workspace}}/build" --wrap-mode=${{matrix.deps}} -Ddefault_library=${{matrix.type}} -Dwarning_level=3 -Dcpp_std=c++20
           meson compile -C "${{github.workspace}}/build" --verbose
           meson test -C "${{github.workspace}}/build" --verbose
diff --git a/.github/workflows/on_PR_meson_clang.yaml b/.github/workflows/on_PR_meson_clang.yaml
index 464458a6..aef723f0 100644
--- a/.github/workflows/on_PR_meson_clang.yaml
+++ b/.github/workflows/on_PR_meson_clang.yaml
@@ -25,6 +25,6 @@ jobs:
 
       - name: Sanity Checks
         run: |
-          env CXX=clang++-${{matrix.cxx}} CXXFLAGS=-stdlib=libc++ meson setup "${{github.workspace}}/build" --wrap-mode=${{matrix.deps}} -Ddefault_library=${{matrix.type}} -Dwarning_level=3
+          env CXX=clang++-${{matrix.cxx}} CXXFLAGS=-stdlib=libc++ meson setup "${{github.workspace}}/build" --wrap-mode=${{matrix.deps}} -Ddefault_library=${{matrix.type}} -Dwarning_level=3 -Dcpp_std=c++20
           meson compile -C "${{github.workspace}}/build" --verbose
           meson test -C "${{github.workspace}}/build" --verbose