diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 05ceb86..0a662d4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,7 +28,7 @@ jobs:
           installer-parallel: true
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .venv
           key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
diff --git a/.github/workflows/docs-build.yml b/.github/workflows/docs-build.yml
index 484523b..d8b8d11 100644
--- a/.github/workflows/docs-build.yml
+++ b/.github/workflows/docs-build.yml
@@ -25,7 +25,7 @@ jobs:
           installer-parallel: true
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .venv
           key: venv-doc-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/docs/poetry.lock') }}