diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 0fe668e0..0a4e4b26 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -45,7 +45,7 @@ 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: ${{ env.CONDA_PREFIX }}
           key: ubuntu-latest-3.10-conda-${{ hashFiles('continuous_integration/environment.yaml') }}-${{ env.DATE }}-${{ env.CACHE_NUMBER }}
@@ -122,7 +122,7 @@ 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 }}-${{ env.CACHE_NUMBER }}
diff --git a/continuous_integration/environment.yaml b/continuous_integration/environment.yaml
index 81cdab9d..dab5c24f 100644
--- a/continuous_integration/environment.yaml
+++ b/continuous_integration/environment.yaml
@@ -37,7 +37,7 @@ dependencies:
   - scipy
   - zarr
   - xarray
-  - pytest
+  - pytest <8.0
   - pytest-cov
   - pytest-lazy-fixture
   - sphinx