diff --git a/.github/workflows/cpp-rllm.yml b/.github/workflows/cpp-rllm.yml
index effc3a7b..677dcd58 100644
--- a/.github/workflows/cpp-rllm.yml
+++ b/.github/workflows/cpp-rllm.yml
@@ -18,6 +18,7 @@ jobs:
     - uses: actions/checkout@v3
       with:
         submodules: true
+    - uses: hendrikmuhs/ccache-action@v1.2
     - uses: Swatinem/rust-cache@v2
       with:
         cache-on-failure: true