diff --git a/spack.yaml b/spack.yaml
index 70331a0dd73113e190bceaa6a791f061e68cd682..2d6bc52d97a92b106a74b5468785ab9e7389be37 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -19,7 +19,7 @@ spack:
           ^mesa swr=none +opengl -llvm +osmesa
     - pythia8@8303 +fastjet
     - fastjet@3.3.3
-    - hepmc3@3.2.2 +python +rootio 
+    - hepmc3@3.2.4 +python +rootio 
     - stow@2.3.1
     - cairo@1.16.0 +fc+ft+X+pdf+gobject
     - podio@0.13.1 build_type=RelWithDebInfo