diff --git a/spack.yaml b/spack.yaml
index 47a402fde30a0adb30abafb2f02416bb16fc3df1..0099cdbef7a1d1a1e261b37f08387ff1d085e08a 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -39,7 +39,7 @@ spack:
     - pythia8@8.306 +fastjet
     - python@3.10.8
     - py-boto3@1.18.12
-    - py-minkowskiengine@0.5.4
+    - py-minkowskiengine@master
     - py-numpy@1.23.4
     - py-pip@22.2.2
     - py-toml@0.10.2