diff --git a/CommunityTechTree/CommunityTechTree-2.1.ckan b/CommunityTechTree/CommunityTechTree-2.1.ckan
index ae1b3fa63a..84a4c3b3dd 100644
--- a/CommunityTechTree/CommunityTechTree-2.1.ckan
+++ b/CommunityTechTree/CommunityTechTree-2.1.ckan
@@ -1,11 +1,32 @@
 {
-    "spec_version": 1,
+    "spec_version": "v1.4",
     "identifier": "CommunityTechTree",
-    "license": "CC-BY-NC-4.0",
     "release_status": "stable",
+    "license": "CC-BY-NC-4.0",
     "depends": [
         {
-            "name": "ModuleManager"
+            "name": "ModuleManager",
+            "min_version": "2.6.2"
+        }
+    ],
+    "conflicts": [
+        {
+            "name": "ETT"
+        },
+        {
+            "name": "ModOrientedTechTree"
+        },
+        {
+            "name": "ModOrientedTechTree-Unmanned"
+        },
+        {
+            "name": "OpenTree"
+        }
+    ],
+    "install": [
+        {
+            "find": "CommunityTechTree",
+            "install_to": "GameData"
         }
     ],
     "resources": {