diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 07ee9f5..726de4e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@
     env:
       CC: ${{ matrix.compiler }}
       GCC_VER: 13
-      CLANG_VER: 17
+      CLANG_VER: 18
       TEST: test
       SRCDIR: ./src
       LEAK_CFLAGS: -DEXITFREE