diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3251a9b..c532c6f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
       run: |
         python -m poetry config virtualenvs.in-project true
     - name: Cache the virtualenv
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ./.venv
         key: ${{ runner.os }}-venv-${{ hashFiles('**/poetry.lock') }}
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 6705973..268f07d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -26,7 +26,7 @@ jobs:
         run: |
           python -m poetry config virtualenvs.in-project true
       - name: Cache the virtualenv
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ./.venv
           key: ${{ runner.os }}-venv-${{ hashFiles('**/poetry.lock') }}