diff --git a/GroundConstruction-Core/GroundConstruction-Core-2.7.1.ckan b/GroundConstruction-Core/GroundConstruction-Core-2.7.1.ckan
index 73b00aa74a..a8cc02f8c4 100644
--- a/GroundConstruction-Core/GroundConstruction-Core-2.7.1.ckan
+++ b/GroundConstruction-Core/GroundConstruction-Core-2.7.1.ckan
@@ -1,5 +1,5 @@
 {
-    "spec_version": "v1.16",
+    "spec_version": "v1.2",
     "identifier": "GroundConstruction-Core",
     "name": "Global Construction Core",
     "abstract": "This is the core component of the Global Construction mod. It should only be installed as a dependency by other mods.",