diff --git a/PersistentRotation/PersistentRotation-1.8.7.ckan b/PersistentRotation/PersistentRotation-1.8.7.ckan
index 08763af467..322afaed41 100644
--- a/PersistentRotation/PersistentRotation-1.8.7.ckan
+++ b/PersistentRotation/PersistentRotation-1.8.7.ckan
@@ -1,5 +1,5 @@
 {
-    "spec_version": "v1.4",
+    "spec_version": 1,
     "identifier": "PersistentRotation",
     "name": "PersistentRotation",
     "abstract": "Persistent rotation, momentum and much more!",