diff --git a/.github/workflows/edm4hep.yaml b/.github/workflows/edm4hep.yaml
index 76d970d63..9bb4c5475 100644
--- a/.github/workflows/edm4hep.yaml
+++ b/.github/workflows/edm4hep.yaml
@@ -13,8 +13,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        LCG: ["LCG_102/x86_64-centos7-gcc11-opt",
-              "LCG_102/x86_64-ubuntu2004-gcc9-opt"]
+        LCG: ["LCG_104/x86_64-el9-gcc13-opt",
+              "dev4/x86_64-ubuntu2004-gcc9-opt",
+              "LCG_104/x86_64-el9-clang16-opt"]
     steps:
       - uses: actions/checkout@v3
         with:
@@ -27,6 +28,7 @@ jobs:
         with:
           repository: catchorg/Catch2
           path: catch2
+          ref: v3.4.0
       - uses: cvmfs-contrib/github-action-cvmfs@v3
       - uses: aidasoft/run-lcg-view@v4
         with: