diff --git a/.github/workflows/centos-latest.yml b/.github/workflows/centos-latest.yml
index 1c1f4e9..87080b7 100644
--- a/.github/workflows/centos-latest.yml
+++ b/.github/workflows/centos-latest.yml
@@ -40,15 +40,11 @@ jobs:
         with:
           submodules: true
 
-      - name: Get time
-        run: |
-          date +'%Y-%m' > snapshot.txt
-
       - name: Cache for cccahe
         uses: actions/cache@v3
         with:
           path: /home/runner/.ccache
-          key: ${{ runner.os }}-centos-ccache-${{ hashFiles('**/snapshot.txt') }}
+          key: ${{ runner.os }}-centos-ccache-${{ hashFiles('/CMakeLists.txt') }}
           restore-keys: |
             ${{ runner.os }}-centos-ccache-