diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fe065ba6..e255c54d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,12 +10,13 @@ jobs:
         os: [ ubuntu-22.04 ]
         compiler:
           - { name: gcc, version: 11 }
-          - { name: gcc, version: 12 }
+          # - { name: gcc, version: 12 }
           - { name: gcc, version: 13 }
           - { name: clang, version: 14 }
           - { name: clang, version: 15 }
           - { name: clang, version: 16 }
           - { name: clang, version: 17 }
+          - { name: clang, version: 18 }
         config: [ Release, Debug ]
     name: "${{ matrix.os }} / ${{ matrix.config }} / ${{ matrix.compiler.name }}-${{ matrix.compiler.version }}"
     runs-on: ${{ matrix.os }}