diff --git a/spack.yaml b/spack.yaml
index 5b1825c38fd924dcfd091db3a4fc1625eafa278c..06f907f3e7edbcfa93a84f7b51155a09685edc01 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -7,7 +7,7 @@ spack:
     - cnpy@master
     - dawn@3_91a
     - dawncut@1_54a
-    - dd4hep@1.20.1 +geant4 -assimp +hepmc3 +ipo +lcio
+    - dd4hep@1.20.1 +ddg4 -ddcad +hepmc3 +ipo +lcio
     - edm4hep@0.4.1 cxxstd=17 -ipo
     - eigen@3.4.0
     - emacs@27.2 toolkit=athena