diff --git a/update.py b/update.py
index 036e608..bbea79e 100755
--- a/update.py
+++ b/update.py
@@ -8,7 +8,8 @@ REPO = 'mattermost/mattermost-enterprise-edition'
 dxf = DXF('registry-1.docker.io', REPO)
 dxf.authenticate(actions=["pull"])
 tags = dxf.list_aliases()
-tags = (tag for tag in tags if re.match(r"^\d+\.\d+\.\d+$", tag))
+tags = [tag for tag in tags if re.match(
+    r"^\d+\.\d+\.\d+$", tag) and int(tags.split('.')[0]) > 5]
 
 try:
     local_dxf = DXF(environ['CI_REGISTRY'], environ['CI_PROJECT_PATH'])