diff --git a/atlas/sim_mt/CHANGELOG.md b/atlas/sim_mt/CHANGELOG.md
index 51720e56cd0255bb321fcd22142a34d778a0e790..aeeffcfcb9e75e0a3f2cf43ad0370f64c4cf5011 100644
--- a/atlas/sim_mt/CHANGELOG.md
+++ b/atlas/sim_mt/CHANGELOG.md
@@ -17,4 +17,4 @@
 - Fix bug in folder walking https://its.cern.ch/jira/browse/BMK-890
 
 ## [v0.1] 2021-09-21
-- First working release of Atlas simMT
\ No newline at end of file
+- First working release of Atlas simMT
diff --git a/atlas/sim_mt/atlas-sim_mt.spec b/atlas/sim_mt/atlas-sim_mt.spec
index a3eef95430f4dc124f219e39de16247e8d8a5801..e6cb97caaf747794f37cd009ce36033d50dc1767 100644
--- a/atlas/sim_mt/atlas-sim_mt.spec
+++ b/atlas/sim_mt/atlas-sim_mt.spec
@@ -3,6 +3,6 @@ HEPWL_BMKOPTS="-e 3 -t 2"
 HEPWL_BMKDIR=atlas-sim_mt
 HEPWL_BMKDESCRIPTION="Atlas simulation MT (GEANT4) based on athena version 22.0.25"
 HEPWL_DOCKERIMAGENAME=atlas-sim_mt-bmk
-HEPWL_DOCKERIMAGETAG=ci-v1.0
+HEPWL_DOCKERIMAGETAG=v1.0
 HEPWL_CVMFSREPOS=atlas.cern.ch,atlas-condb.cern.ch,sft.cern.ch
 HEPWL_BMKOS="gitlab-registry.cern.ch/linuxsupport/cc7-base:20211101-1.x86_64"