diff --git a/jenkins_jobs/registry.py b/jenkins_jobs/registry.py
index 9418dea52..ab37f663c 100644
--- a/jenkins_jobs/registry.py
+++ b/jenkins_jobs/registry.py
@@ -72,6 +72,29 @@ class ModuleRegistry(object):
                 r"(.*)-(?:SNAPSHOT|BETA).*", r"\g<1>.preview", version
             )
 
+            if isinstance(
+                pkg_resources.parse_version(plugin_info["version"]),
+                pkg_resources.extern.packaging.version.LegacyVersion,
+            ):
+                plugin_info["version"] = plugin_info["version"].replace("-", "+")
+            if isinstance(
+                pkg_resources.parse_version(plugin_info["version"]),
+                pkg_resources.extern.packaging.version.LegacyVersion,
+            ):
+                plugin_name = plugin_info.get(
+                    "shortName", plugin_info.get("longName", None)
+                )
+                if plugin_name:
+                    logger.warning(
+                        "Version %s for plugin %s is being treated as a LegacyVersion"
+                        % (plugin_info["version"], plugin_name)
+                    )
+                else:
+                    logger.warning(
+                        "Version %s is being treated as a LegacyVersion"
+                        % plugin_info["version"]
+                    )
+
             aliases = []
             for key in ["longName", "shortName"]:
                 value = plugin_info.get(key, None)
diff --git a/tests/moduleregistry/test_moduleregistry.py b/tests/moduleregistry/test_moduleregistry.py
index 743f180f2..4f1d55020 100644
--- a/tests/moduleregistry/test_moduleregistry.py
+++ b/tests/moduleregistry/test_moduleregistry.py
@@ -37,6 +37,10 @@ class ModuleRegistryPluginInfoTestsWithScenarios(
                 v1="1.4.6-SNAPSHOT (private-0986edd9-example)", op="__gt__", v2="1.4.5"
             ),
         ),
+        ("s16", dict(v1="1.0.1-1.v1", op="__gt__", v2="1.0.1")),
+        ("s17", dict(v1="1.0.1-1.v1", op="__lt__", v2="1.0.2")),
+        ("s18", dict(v1="1.0.2-1.v1", op="__gt__", v2="1.0.1")),
+        ("s19", dict(v1="1.0.2-1.v1", op="__gt__", v2="1.0.1-2")),
     ]
 
     def setUp(self):