diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a5d7c37b8a2a534afbe8f9d7fdac37fa0d1c8031..9386b9f43d09d63605c4149b8011915230af7ea4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -21,7 +21,8 @@ jobs:
     runs-on: self-hosted
     strategy:
       matrix:
-        LCG_RELEASE: [LCG_EXTERNAL, KEY4HEP_STACK]
+        # LCG_RELEASE: [LCG_EXTERNAL, KEY4HEP_STACK]
+        LCG_RELEASE: [LCG_EXTERNAL]
         # CEPCSW_BLDTOOL: [make, ninja]
         CEPCSW_BLDTOOL: [ninja]