diff --git a/KerbalAircraftExpansion/KerbalAircraftExpansion-1-KAX_v2.5.3.ckan b/KerbalAircraftExpansion/KerbalAircraftExpansion-1-KAX_v2.5.3.ckan
index 067c8eff55..10d86a834a 100644
--- a/KerbalAircraftExpansion/KerbalAircraftExpansion-1-KAX_v2.5.3.ckan
+++ b/KerbalAircraftExpansion/KerbalAircraftExpansion-1-KAX_v2.5.3.ckan
@@ -1,5 +1,5 @@
 {
-    "spec_version": "v1.12",
+    "spec_version": "v1.4",
     "identifier": "KerbalAircraftExpansion",
     "name": "Kerbal Aircraft Expansion (KAX)",
     "abstract": "A pack of select parts for your aircrafting needs, including propellers, helicopter rotors, and more!",