diff --git a/.github/workflows/test_and_deploy.yml b/.github/workflows/test_and_deploy.yml
index e8951731..3088029d 100644
--- a/.github/workflows/test_and_deploy.yml
+++ b/.github/workflows/test_and_deploy.yml
@@ -56,6 +56,12 @@ jobs:
         if: matrix.os == 'macos-latest'
         run: |
           brew install hdf5
+      # Cache cellfinder workflow data
+      - name: Cache data for cellfinder workflow tests
+        uses: actions/cache@v3
+        with:
+          path: ~/.brainglobe-tests
+          key: cellfinder-test-data
       # Run tests
       - uses: neuroinformatics-unit/actions/test@v2
         with: