diff --git a/includes/cache.yml b/includes/cache.yml
index 434f372cbde4c77caddf41b83bb03342793dada3..a3bde03fca1d7943d74aa57d4aaf07f697af2478 100644
--- a/includes/cache.yml
+++ b/includes/cache.yml
@@ -1,6 +1,8 @@
 .cache-node-modules:
   cache:
-    key: "$CI_COMMIT_REF_SLUG" # we have a fallback configured using CACHE_FALLBACK_KEY
+    key: node-modules
+    # unfortunatly CACHE_FALLBACK_KEY is broken https://gitlab.com/gitlab-org/gitlab-runner/-/issues/27293
+    #key: "$CI_COMMIT_REF_SLUG" # we have a fallback configured using CACHE_FALLBACK_KEY
     policy: pull-push
     paths:
       - "$APP_DIR/node_modules/"
diff --git a/panter-kubernetes-base.yml b/panter-kubernetes-base.yml
index c6f041c48f065cf0ef785069995335be41eb3906..5d54eccccc8dd11d389f177c719c850450e951b8 100644
--- a/panter-kubernetes-base.yml
+++ b/panter-kubernetes-base.yml
@@ -41,7 +41,9 @@ variables:
 
   # see https://on.cypress.io/caching
   CYPRESS_CACHE_FOLDER: "$CI_PROJECT_DIR/.cache/Cypress"
-  CACHE_FALLBACK_KEY: $CI_DEFAULT_BRANCH
+
+  # currently completly useless because of a bug: https://gitlab.com/gitlab-org/gitlab-runner/-/issues/27293
+  #CACHE_FALLBACK_KEY: $CI_DEFAULT_BRANCH
 
   # Docker
   DOCKER_HOST: tcp://0.0.0.0:2375