diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 76c627b9b4..d9cbc07574 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -168,14 +168,14 @@ jobs:
           python -m pip install -r requirements.txt
 
       - name: Cache Zenodo test data
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: build/tests/integrated/test-fci-mpi/grid.fci.nc
           # If we update the test, invalidate the cache
           key: zenodo-data-${{ hashFiles('tests/integrated/test-fci-mpi/CMakeLists.txt') }}
 
       - name: Cache SUNDIALS build
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: /home/runner/local
           key: bout-sundials-${{ matrix.config.os }}${{ matrix.config.build_petsc }}
@@ -205,7 +205,7 @@ jobs:
           submodules: true
 
       - name: Cache Zenodo test data
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: build/tests/integrated/test-fci-mpi/grid.fci.nc
           # If we update the test, invalidate the cache