diff --git a/MakingHistoryEngineTweaks/MakingHistoryEngineTweaks-v1.1.ckan b/MakingHistoryEngineTweaks/MakingHistoryEngineTweaks-v1.1.ckan
index e459655584..fdd11c49f7 100644
--- a/MakingHistoryEngineTweaks/MakingHistoryEngineTweaks-v1.1.ckan
+++ b/MakingHistoryEngineTweaks/MakingHistoryEngineTweaks-v1.1.ckan
@@ -10,6 +10,8 @@
         "repository": "https://github.com/TykoTek/EngineTweaks_for_MakingHistory"
     },
     "version": "v1.1",
+    "ksp_version_min": "1.4",
+    "ksp_version_max": "1.5",
     "depends": [
         {
             "name": "ModuleManager"