diff --git a/spack.yaml b/spack.yaml
index bcefded2ff7511ce72ef10b9da790c2d74e8ac04..706495ad7ba4b5b91b4f9d7d9e93430b1e5c42c6 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -12,7 +12,7 @@ spack:
     - fastjet@3.3.3
     - fmt@7.1.2 cxxstd=17
     - gaudi@36.0
-    - geant4@10.7.3 cxxstd=17 +opengl +vecgeom +x11 +qt +threads
+    - geant4@10.7.2 cxxstd=17 +opengl +vecgeom +x11 +qt +threads
     - genfit@2.00.00
     - hepmc3@3.2.4 +python +rootio 
     - heppdt@3.04.01