diff --git a/.github/workflows/ci-macos.yml b/.github/workflows/ci-macos.yml
index 9313e53..9d3738f 100644
--- a/.github/workflows/ci-macos.yml
+++ b/.github/workflows/ci-macos.yml
@@ -11,9 +11,8 @@ jobs:
     
     strategy:
       matrix:
-        os: [macos-13]
-        # g++-13 fails on and macos-13 with some error in stdio.h !
-        compiler: [clang++, g++-12, g++-14]
+        os: [macos-14]
+        compiler: [clang++]
 
     steps:
     - uses: actions/checkout@v4
diff --git a/.github/workflows/ci-windows.yml b/.github/workflows/ci-windows.yml
index b4291a2..8c8d2be 100644
--- a/.github/workflows/ci-windows.yml
+++ b/.github/workflows/ci-windows.yml
@@ -15,7 +15,7 @@ jobs:
     
     strategy:
       matrix:
-        os: [windows-latest, windows-2019]
+        os: [windows-2019, windows-2022]
         architecture: [x86, x64]
 
     steps: