diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index f1d6fcc0b..f5f0941e3 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -129,7 +129,7 @@ jobs:
       - name: prepare
         run: |
           sudo apt update
-          sudo apt install language-pack-ja ninja-build lld lld-18 llvm-18 llvm-18-dev
+          sudo apt install language-pack-ja ninja-build lld
       - name: configure
         run: |
           mkdir build