diff --git a/pom.xml b/pom.xml
index 2f98a08..80d6702 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,8 +5,8 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>rystudio.strafbefehl.vinyl</groupId>
-    <artifactId>core</artifactId>
-    <version>1.0.39-RELEASE</version>
+    <artifactId>coreunstable</artifactId>
+    <version>1.0.40-UNSTABLE-R1</version>
     <packaging>jar</packaging>
     <name>Vinyl-Core</name>
 
diff --git a/src/main/java/rystudio/strafbefehl/vinyl/Core.java b/src/main/java/rystudio/strafbefehl/vinyl/Core.java
index 678dcbb..28025a9 100644
--- a/src/main/java/rystudio/strafbefehl/vinyl/Core.java
+++ b/src/main/java/rystudio/strafbefehl/vinyl/Core.java
@@ -15,6 +15,7 @@
 import net.dv8tion.jda.api.interactions.commands.build.CommandData;
 import net.dv8tion.jda.api.interactions.commands.build.Commands;
 import net.dv8tion.jda.api.requests.GatewayIntent;
+import net.dv8tion.jda.api.sharding.DefaultShardManager;
 import net.dv8tion.jda.api.sharding.DefaultShardManagerBuilder;
 import net.dv8tion.jda.api.sharding.ShardManager;
 import net.dv8tion.jda.api.utils.cache.CacheFlag;
@@ -44,7 +45,7 @@ public class Core extends ListenerAdapter {
 
     public JDA jda;
     private boolean running;
-    private ShardManager shardManager;
+    private DefaultShardManager shardManager;
 
     private DefaultShardManagerBuilder builder;
 
@@ -433,7 +434,7 @@ public Core registerListeners(ListenerAdapter... listeners) {
             return this;
         } else {
             if (this.shardManager == null) {
-                this.shardManager = DefaultShardManagerBuilder.createDefault(this.config.getToken()).build();
+                this.shardManager = (DefaultShardManager) DefaultShardManagerBuilder.createDefault(this.config.getToken()).build();
                 // Configure any other settings for the shardManager if needed
             }