diff --git a/environments/key4hep-common/packages.yaml b/environments/key4hep-common/packages.yaml
index 16cdea1a..7fef9b7d 100644
--- a/environments/key4hep-common/packages.yaml
+++ b/environments/key4hep-common/packages.yaml
@@ -34,6 +34,8 @@ packages:
     require: +lccd
   madgraph5amc:
     require: '@3: +pythia8'
+  rivet:
+    require: hepmc=3
   podio:
     require: +datasource+rntuple+rpath+sio
   py-numpy:
@@ -125,4 +127,4 @@ packages:
   py-onnx:
     require: '@1.15.0'
   py-onnxruntime:
-    require: '@1.17.1'
\ No newline at end of file
+    require: '@1.17.1'