diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 17dd017..84c0649 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -46,7 +46,7 @@ jobs:
           CONDA_PREFIX=$(python -c "import sys; print(sys.prefix)")
           echo "CONDA_PREFIX=$CONDA_PREFIX" >> $GITHUB_ENV
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ${{ env.CONDA_PREFIX }}
           key: ${{ matrix.os }}-${{matrix.python-version}}-conda-${{ hashFiles('continuous_integration/environment.yaml') }}-${{ env.DATE }}-${{matrix.experimental}}-${{ env.CACHE_NUMBER }}