diff --git a/Jenkinsfile.sh b/Jenkinsfile.sh
index 870f2b6..502f6c7 100644
--- a/Jenkinsfile.sh
+++ b/Jenkinsfile.sh
@@ -10,7 +10,6 @@ TEST_DATA_DIR="$WORKSPACE/../../../test-data"
 
 
 # build
-docker build -f ${WORKSPACE_ROOT}/projects/tricolour/docker/python36.docker -t tricolour.1804.py36:${BUILD_NUMBER} ${WORKSPACE_ROOT}/projects/tricolour/
 docker build -f ${WORKSPACE_ROOT}/projects/tricolour/docker/python38.docker -t tricolour.2004.py38:${BUILD_NUMBER} ${WORKSPACE_ROOT}/projects/tricolour/
 docker build -f ${WORKSPACE_ROOT}/projects/tricolour/docker/python310.docker -t tricolour.2204.py310:${BUILD_NUMBER} ${WORKSPACE_ROOT}/projects/tricolour/