diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index 8ef8197b..5a5899f7 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -111,7 +111,7 @@ packages:
     - '@1.16.2:'
   dd4hep:
     require:
-    - '@1.33'
+    - '@1.34'
     - +ddg4 +ddcad +edm4hep +hepmc3 +xercesc
     - any_of: [+ddeve +utilityapps, -ddeve -utilityapps] # FIXME ^root +x +opengl when +utilityapps
   dpmjet:
diff --git a/spack-packages.sh b/spack-packages.sh
index a6220f3e..548cc7ef 100644
--- a/spack-packages.sh
+++ b/spack-packages.sh
@@ -39,6 +39,7 @@ b9ad19ee2ce47f8b7fbe187d41d898f873bbc121
 58593e5d028737fef024c8136045b9d3f988e3e3
 e87325e40627e4113c5e374f83e086f2421e005a
 a1437186c1d979ce112d52be178d0fb88b70f332
+cfa8d650480c409de2d568cf1355bf7e509f4c1c
 ---
 ## Optional hash table with comma-separated file list
 ## For these commits, the cherry-pick will be restricted to the listed files only.
@@ -77,3 +78,4 @@ read -r -d '' SPACKPACKAGES_CHERRYPICKS_FILES <<- \
 ## 58593e5d028737fef024c8136045b9d3f988e3e3: py-onnxruntime: patch to add linker flag -z noexecstack
 ## e87325e40627e4113c5e374f83e086f2421e005a: acts: add v44.4.0
 ## a1437186c1d979ce112d52be178d0fb88b70f332: acts: narrow when range on podio when +edm4hep +examples
+## cfa8d650480c409de2d568cf1355bf7e509f4c1c: dd4hep: Add version 1.34