diff --git a/RealSolarSystem/RealSolarSystem-v20.1.3.0.ckan b/RealSolarSystem/RealSolarSystem-v20.1.3.0.ckan
index 8b61376392..23d1c36aff 100644
--- a/RealSolarSystem/RealSolarSystem-v20.1.3.0.ckan
+++ b/RealSolarSystem/RealSolarSystem-v20.1.3.0.ckan
@@ -1,5 +1,5 @@
 {
-    "spec_version": "v1.12",
+    "spec_version": "v1.4",
     "identifier": "RealSolarSystem",
     "name": "Real Solar System",
     "abstract": "Resizes and rearranges the Kerbal system to more closely resemble the Solar System",