diff --git a/cms/gen-sim/cms-gen-sim.spec b/cms/gen-sim/cms-gen-sim.spec
index 931976189ca118c1ba630e8ddf832e23c1e39a10..ea5767d3a7dcaae8f1b418f8735fafa8874fa0f6 100644
--- a/cms/gen-sim/cms-gen-sim.spec
+++ b/cms/gen-sim/cms-gen-sim.spec
@@ -3,6 +3,6 @@ HEPWL_BMKOPTS="-t 4 -e 2" # -c replaces -n as of v0.12
 HEPWL_BMKDIR=cms-gen-sim
 HEPWL_BMKDESCRIPTION="CMS GEN-SIM of ttbar events, based on CMSSW_10_2_9"
 HEPWL_DOCKERIMAGENAME=cms-gen-sim-bmk
-HEPWL_DOCKERIMAGETAG=v0.17 # versions >= v0.13 use common bmk driver
+HEPWL_DOCKERIMAGETAG=v1.0 # versions >= v0.13 use common bmk driver
 HEPWL_CVMFSREPOS=cms.cern.ch
 HEPWL_EXTEND_CMS_SPEC=./cms_spec_custom.txt