diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f3afd38..10759f6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         compiler: [clang, gcc]
-        version: [18.04, 20.04, 22.04]
+        version: [20.04, 22.04]
 
     runs-on: ubuntu-${{ matrix.version }}
     env: