diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index cc098aab91bfcb5d04d61e96e54451b7f77501ea..77f4f159620cb1fe0f5e146281bdfc5c95965ad2 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -284,7 +284,7 @@ packages:
     - +batch +xrootd
   pythia8:
     require:
-    - '@8.311'
+    - '@8.312'
     - +fastjet +root
   python:
     require: