diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index c8643cf51299a7d5e33052e9367d773da886594d..7ea0dc22da76b817674d5469d26e2736822e1b56 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -283,7 +283,6 @@ packages:
     - +rntuple
   prmon:
     require:
-    - '@3.0.2'
     - +plot
   protobuf:
     require: