diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 95e9d228..a912aa52 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -126,7 +126,7 @@ jobs:
         run: python -m pip install --upgrade tox
 
       - name: Cache tox virtual environment
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .tox
           key: ${{ matrix.os }}-tox-${{ matrix.python-version }}-${{ hashFiles('pyproject.toml', 'tox.ini') }}
@@ -196,7 +196,7 @@ jobs:
         run: python -m pip install --upgrade tox
 
       - name: Cache tox virtual environment
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .tox
           key: ubuntu-latest-tox-${{ matrix.python-version }}-${{ hashFiles('pyproject.toml', 'tox.ini') }}
@@ -264,7 +264,7 @@ jobs:
         run: python -m pip install --upgrade tox
 
       - name: Cache tox virtual environment
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .tox
           key: ubuntu-latest-tox-${{ matrix.python-version }}-${{ hashFiles('pyproject.toml', 'tox.ini') }}