diff --git a/install.json b/install.json
index 7c14d0c..8ccd4f9 100644
--- a/install.json
+++ b/install.json
@@ -1355,6 +1355,17 @@
       "SourceRegex": "^.*\\-(|v|V)[0-9\\.\\+\\-]*?(|\\-pre|\\-GTNH|\\-gtnh)\\.jar$",
       "SourceTag": "1.2.0"
     },
+    {
+      "Id": "mod:rwg",
+      "Name": "Realistic World Gen",
+      "DestPath": "mods/RWG-alpha.jar",
+      "SourceUrl": "https://github.com/GTNewHorizons/Realistic-World-Gen/releases/download/alpha-1.5.0/RWG-alpha-1.5.0.jar",
+      "SourceType": "GitHub",
+      "SourceOwner": "GTNewHorizons",
+      "SourceName": "Realistic-World-Gen",
+      "SourceRegex": "^.*\\-(|v|V)[0-9\\.\\+\\-]*?(|\\-pre|\\-GTNH|\\-gtnh)\\.jar$",
+      "SourceTag": "alpha-1.5.0"
+    },
     {
       "Id": "mod:randomthings",
       "Name": "Random Things",
diff --git a/updates.json b/updates.json
index 482c968..661c919 100644
--- a/updates.json
+++ b/updates.json
@@ -1,5 +1,16 @@
 {
   "Updates": [
+    {
+      "Version": "1.12.1.0",
+      "Actions": [
+        {
+          "InheritFrom": "mod:rwg"
+        },
+        {
+          "InheritFrom": "config:both"
+        }
+      ]
+    },
     {
       "Version": "1.12.0.0",
       "Actions": [