diff --git a/eic-spack.sh b/eic-spack.sh
index eac402dc..362c7fd8 100644
--- a/eic-spack.sh
+++ b/eic-spack.sh
@@ -5,4 +5,4 @@ EICSPACK_ORGREPO="eic/eic-spack"
 
 ## EIC spack commit hash or github version, e.g. v0.19.7
 ## note: nightly builds could use a branch e.g. releases/v0.19
-EICSPACK_VERSION="ce2dc68e4f75299f7a684708788870282ecde53a"
+EICSPACK_VERSION="60be4761de4bd775b825edcf5a667ad84ebc1685"
diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index 6d896181..a799ef0e 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -122,7 +122,7 @@ packages:
     - '@1.16.2:'
   dd4hep:
     require:
-    - '@1.36'
+    - '@1.36.mt.1'
     - +ddg4 +ddcad +edm4hep +hepmc3 +xercesc
     - any_of: [+ddeve +utilityapps, -ddeve -utilityapps] # FIXME ^root +x +opengl when +utilityapps
   doxygen: