diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index c9da1c39..e3cf63bd 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -316,7 +316,7 @@ packages:
     - '@1.0.0'
   podio:
     require:
-    - '@1.6'
+    - '@git.127fe2f1fb828e353013de82d78841b448e2152f=1.6'
     - cxxstd=20
     - +rntuple
     package_attributes: