diff --git a/CustomCategories/CustomCategories-v1.0.0.ckan b/CustomCategories/CustomCategories-v1.0.0.ckan
index 747a5d46ed..8cffef96a2 100644
--- a/CustomCategories/CustomCategories-v1.0.0.ckan
+++ b/CustomCategories/CustomCategories-v1.0.0.ckan
@@ -1,5 +1,5 @@
 {
-    "spec_version": "v1.4",
+    "spec_version": 1,
     "identifier": "CustomCategories",
     "name": "Custom Categories",
     "abstract": "Create and edit part categories in the VAB and SPH editors",