diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index 1228267359f406dd81dbd76e7955d0c4935a0b01..5bbc79b3b33777eae145dc0b3571166cb1d8155d 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -117,10 +117,12 @@ packages:
     - 'artifacts=epic_craterlake'
   fastjet:
     require:
+    - '%gcc'
     - '@3.4.0'
     - plugins=cxx
   fjcontrib:
     require:
+    - '%gcc'
     - '@1.051'
   flame:
     require: