diff --git a/TechTreeKompacted/TechTreeKompacted-1.6.1.ckan b/TechTreeKompacted/TechTreeKompacted-1.6.1.ckan
index 3799f06b7c..8352c2c833 100644
--- a/TechTreeKompacted/TechTreeKompacted-1.6.1.ckan
+++ b/TechTreeKompacted/TechTreeKompacted-1.6.1.ckan
@@ -1,5 +1,5 @@
 {
-    "spec_version": "v1.4",
+    "spec_version": 1,
     "identifier": "TechTreeKompacted",
     "name": "TechTree Kompacted",
     "abstract": "A TechTree Layout Mod that aims to shrink compatible tech trees to fit on a single page offering an improved layout.",