diff --git a/environments/mucoll-integration/spack.yaml b/environments/mucoll-integration/spack.yaml
index bf3569b..f48cec6 100644
--- a/environments/mucoll-integration/spack.yaml
+++ b/environments/mucoll-integration/spack.yaml
@@ -12,6 +12,8 @@ spack:
       require: '@0.10.5'
     podio:
       require: '@0.17.3'
+    acts:
+      require: '@32.0.0'
 #    whizard:
 #      require: '@3.1.2 ~fastjet~latex+lcio~lhapdf+openloops~openmp+pythia8 hepmc=3'
     pythia8:
diff --git a/packages/actstracking/package.py b/packages/actstracking/package.py
index 5632341..81c9847 100644
--- a/packages/actstracking/package.py
+++ b/packages/actstracking/package.py
@@ -16,7 +16,7 @@ class Actstracking(CMakePackage, Key4hepPackage):
     maintainers = ['gianelle', 'kkrizka']
 
 
-    version('1.2.0.2', sha256='f63d84e595816b9a19fb8cc887cdda9a47eaf7b7223740d05cc3c02b1f96a3a9')
+    version('1.2.0.2', sha256='f7e3f125a76f349f8db10cf2469b60ab3d0dd1ffdc1a5bd6c57e79661c58c58b')
     version('1.1.0', sha256='d565e70a2fec97d0d2e81ada69ed54ef8dacc44b0f608b4cf3dffa561091afeb')
     version('1.0.0', sha256='0e98f2185920358d9c220883a48df42f3b5282beb32a91a19f9f3f5c1adc103b')