diff --git a/action.yaml b/action.yaml
index 24baf35d6b..8656fdf664 100644
--- a/action.yaml
+++ b/action.yaml
@@ -62,19 +62,19 @@ runs:
         sudo chmod o+x /var/lib/docker
         sudo chmod -R o+rwx /var/lib/docker/volumes
         source ${{ github.action_path }}/.env
-        SENTRY_IMAGE_SHA=$(docker buildx imagetools inspect $SENTRY_IMAGE --format "{{println .Manifest.Digest}}")
-        echo "SENTRY_IMAGE_SHA=$SENTRY_IMAGE_SHA" >> $GITHUB_OUTPUT
-        SNUBA_IMAGE_SHA=$(docker buildx imagetools inspect $SNUBA_IMAGE --format "{{println .Manifest.Digest}}")
-        echo "SNUBA_IMAGE_SHA=$SNUBA_IMAGE_SHA" >> $GITHUB_OUTPUT
+        SENTRY_MIGRATIONS_MD5=$docker run --rm --entrypoint bash $SENTRY_IMAGE -c 'ls -Rv1rpq src/sentry/migrations/' | md5sum | cut -d ' ' -f 1)
+        echo "SENTRY_MIGRATIONS_MD5=$SENTRY_MIGRATIONS_MD5" >> $GITHUB_OUTPUT
+        SNUBA_MIGRATIONS_MD5=$(docker run --rm --entrypoint bash $SNUBA_IMAGE -c 'ls -Rv1rpq snuba/snuba_migrations/**/*.py' | md5sum | cut -d ' ' -f 1       )
+        echo "SNUBA_MIGRATIONS_MD5=$SNUBA_MIGRATIONS_MD5" >> $GITHUB_OUTPUT
 
     - name: Restore DB Volumes Cache
       id: restore_cache
       uses: actions/cache/restore@v4
       with:
-        key: db-volumes-v4-${{ steps.cache_key.outputs.SENTRY_IMAGE_SHA }}-${{ steps.cache_key.outputs.SNUBA_IMAGE_SHA }}
+        key: db-volumes-v5-${{ steps.cache_key.outputs.SNUBA_MIGRATIONS_MD5 }}-${{ steps.cache_key.outputs.SENTRY_MIGRATIONS_MD5 }}
         restore-keys: |
-          db-volumes-v4-${{ steps.cache_key.outputs.SENTRY_IMAGE_SHA }}
-          db-volumes-v4-
+          db-volumes-v5-${{ steps.cache_key.outputs.SNUBA_MIGRATIONS_MD5 }}
+          db-volumes-v5-
         path: |
           /var/lib/docker/volumes/sentry-postgres/_data
           /var/lib/docker/volumes/sentry-clickhouse/_data