diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 614a6f76..f2085a2e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        compiler: [ clang++-12, clang++-13, cland++-15 ]
+        compiler: [ clang++-13, cland++-15 ]
     steps:
       - uses: actions/checkout@v3
         with:
@@ -78,7 +78,7 @@ jobs:
       - name: Add repository
         run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
       - name: Install packages
-        run: sudo apt install clang-12 clang-13 clang-15
+        run: sudo apt install clang-13 clang-15
       - name: Checkout main boost
         run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
       - name: Update Dependencies