diff --git a/src/main/java/com/reider745/InnerCoreServer.java b/src/main/java/com/reider745/InnerCoreServer.java
index 8cdedefe..abe8c481 100644
--- a/src/main/java/com/reider745/InnerCoreServer.java
+++ b/src/main/java/com/reider745/InnerCoreServer.java
@@ -511,7 +511,7 @@ public class InnerCoreServer {
     }
 
     public static String getVersionName() {
-        return getPropertyString("pack-version", "2.3.1b122");
+        return getPropertyString("pack-version", "2.3.1b122o1");
     }
 
     public static boolean isEnableSockets() {
@@ -521,12 +521,12 @@ public class InnerCoreServer {
     public static int getVersionCode() {
         List<Integer> versions = getVersionsCode();
         if(versions.isEmpty())
-            return 160;
+            return 164;
         return versions.get(0);
     }
 
     public static List<Integer> getVersionsCode() {
-        final String args = getPropertyString("pack-version-code", "162");
+        final String args = getPropertyString("pack-version-code", "164");
         final String[] versions_s = args.split(",");
         final List<Integer> versions = new ArrayList<>();
 
diff --git a/src/main/resources/zotecore.yml b/src/main/resources/zotecore.yml
index 285357a0..6a5fffe5 100644
--- a/src/main/resources/zotecore.yml
+++ b/src/main/resources/zotecore.yml
@@ -1,8 +1,8 @@
 # Change resolution of pack that client should have to log into server.
 # However, no deprecated or unimplemented methods will be added.
 pack: Inner Core
-pack-version: 2.3.0b122
-pack-version-code: 163
+pack-version: 2.3.0b122o1
+pack-version-code: 164
 
 # Sets the list of mods and configs to load, you can specify
 # name, folder name of a modpack from /modpacks or a path.