diff --git a/Mk2Rebalance/Mk2Rebalance-0.0.3.ckan b/Mk2Rebalance/Mk2Rebalance-0.0.3.ckan
index 19e6f16d55..c68aba988c 100644
--- a/Mk2Rebalance/Mk2Rebalance-0.0.3.ckan
+++ b/Mk2Rebalance/Mk2Rebalance-0.0.3.ckan
@@ -1,5 +1,5 @@
 {
-    "spec_version": "v1.4",
+    "spec_version": "v1.2",
     "identifier": "Mk2Rebalance",
     "name": "Mk2 Rebalance",
     "abstract": "Balance fixes for the Mk2 spaceplane parts",