diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 903f1ac..75be5c2 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -24,7 +24,7 @@ jobs:
           python-version: "3.11"
       - name: Load cached Poetry installation
         id: cached-poetry-install
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.local
           key: poetry-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-0
@@ -38,7 +38,7 @@ jobs:
           installer-parallel: true
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .venv
           key: static-venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index da51ab6..14e1421 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -61,7 +61,7 @@ jobs:
           python-version: ${{ matrix.py }}
       - name: Load cached Poetry installation
         id: cached-poetry-install
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.local
           key: poetry-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
@@ -75,7 +75,7 @@ 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') }}