diff --git a/HeatControl/HeatControl-0.3.4.ckan b/HeatControl/HeatControl-0.3.4.ckan
index 420fcf423a..da30318607 100644
--- a/HeatControl/HeatControl-0.3.4.ckan
+++ b/HeatControl/HeatControl-0.3.4.ckan
@@ -13,7 +13,8 @@
         "x_screenshot": "https://spacedock.info/content/Nertea_200/Heat_Control/Heat_Control-1461001260.81544.png"
     },
     "version": "0.3.4",
-    "ksp_version": "1.2.1",
+    "ksp_version_min": "1.2.1",
+    "ksp_version_max": "1.2.2",
     "depends": [
         {
             "name": "ModuleManager"