diff --git a/.github/workflows/ci-macos.yml b/.github/workflows/ci-macos.yml
index 45fef5d..5e6d726 100644
--- a/.github/workflows/ci-macos.yml
+++ b/.github/workflows/ci-macos.yml
@@ -12,14 +12,12 @@ jobs:
     strategy:
       matrix:
         os: [macos-12, macos-13]
-        # g++-12 fails on some very innocent code... excluding it for now
-        compiler: [clang++, g++-11, g++-13]
+        # g++-12 and g++13 fail on some very innocent code... excluding them for now
+        compiler: [clang++, g++-11]
         exclude:
-          # g++-11 and g++-13 fails on macos-13 with some linker assertion... excluing it for now
+          # g++-11 fails on macos-13 with some linker assertion... excluding it for now
           - os: macos-13
             compiler: g++-11
-          - os: macos-13
-            compiler: g++-13
 
     steps:
     - uses: actions/checkout@v4
diff --git a/.github/workflows/ci-ubuntu.yml b/.github/workflows/ci-ubuntu.yml
index 5764f6d..aeb239e 100644
--- a/.github/workflows/ci-ubuntu.yml
+++ b/.github/workflows/ci-ubuntu.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         # g++-12 fails on some very innocent code... excluding it for now
-        compiler: [clang++-13, clang++-14, clang++-15, g++-9, g++-10, g++-11, g++-13]
+        compiler: [clang++-13, clang++-14, clang++-15, g++-10, g++-11]
 
     steps:
     - uses: actions/checkout@v4