diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f489b7d..fd01b4e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,7 +33,7 @@ jobs:
         poetry config virtualenvs.in-project true --local
 
     - name: Cache dependencies
-      uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a
+      uses: actions/cache@0c907a75c2c80ebcb7f088228285e798b750cf8f # v4.2.1
       with:
         path: ./.venv
         key: venv-${{ runner.os }}-py${{ matrix.python-version }}-${{ hashFiles('poetry.lock') }}