diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0b8397858f772cdc83a2975e1d9adfa117ea690f..7a93d182a0150ddfad27fd71837c4618e1536131 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -42,6 +42,7 @@ variables:
     f050b1cf7835fd31992b020e1061c52294ff7330
     a419ffcf501134faed24253ccc83e6c71f9659f9
     c3e41153ac92f6ef92414024a8386d4ceec2615c
+    42a452d54c8a25f9f415fef8cf9e3a5c64b7a46a
   ## Ref: https://github.com/spack/spack/commit/[hash]
   ## [hash]: [description]
   ## b5ef5c2eb5145020f9de1bcb964626ce6ac2d02e: geant4: version bumps for Geant4 11.1.0
@@ -73,6 +74,7 @@ variables:
   ## f050b1cf7835fd31992b020e1061c52294ff7330: depfile: variable with all identifiers
   ## a419ffcf501134faed24253ccc83e6c71f9659f9: osg-ca-certs: igtf link should point to version, not 'current'
   ## c3e41153ac92f6ef92414024a8386d4ceec2615c: Package requirements: allow single specs in requirement lists
+  ## 42a452d54c8a25f9f415fef8cf9e3a5c64b7a46a: estarlight, dpmjet: new packages
 
   ## EIC spack organization and repository, e.g. eic/eic-spack
   EICSPACK_ORGREPO: "eic/eic-spack"
diff --git a/spack-environment/dev/spack.yaml b/spack-environment/dev/spack.yaml
index ff898916e2c20f57cb18bea85de43d630c45fd05..3eb5535d818db581370edb0f7669003ac5e8aaa9 100644
--- a/spack-environment/dev/spack.yaml
+++ b/spack-environment/dev/spack.yaml
@@ -17,6 +17,7 @@ spack:
     - dawn@3_91a
     - dawncut@1_54a
     - dd4hep@1.25.1 +ddg4 +ddcad -frames +hepmc3 +lcio +xercesc
+    - dpmjet@19.3.5
     - edm4eic@2.0.0 cxxstd=17
     - edm4hep@0.7 cxxstd=17
     - eic-smear@1.1.10