diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index ed31f8a..02e1dc9 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -21,26 +21,11 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - cc: gcc-11
-            cxx: g++-11
-            clang_major_version: null
-            clang_repo_suffix: null
-            runs-on: ubuntu-22.04
-          - cc: gcc-12
-            cxx: g++-12
-            clang_major_version: null
-            clang_repo_suffix: null
-            runs-on: ubuntu-22.04
           - cc: gcc-13
             cxx: g++-13
             clang_major_version: null
             clang_repo_suffix: null
             runs-on: ubuntu-22.04
-          - cc: clang-15
-            cxx: clang++-15
-            clang_major_version: 15
-            clang_repo_suffix: -15
-            runs-on: ubuntu-22.04
           - cc: clang-18
             cxx: clang++-18
             clang_major_version: 18