diff --git a/Core/src/main/java/me/neurodock/backend/open/ai/OpenAIAssistentMessage.java b/Core/src/main/java/me/neurodock/backend/open/ai/OpenAIAssistentMessage.java
index 2f0e99e..8af8761 100644
--- a/Core/src/main/java/me/neurodock/backend/open/ai/OpenAIAssistentMessage.java
+++ b/Core/src/main/java/me/neurodock/backend/open/ai/OpenAIAssistentMessage.java
@@ -25,7 +25,7 @@ public class OpenAIAssistentMessage extends Message {
         return endReason;
     }
 
-    enum Reason {
+    public static enum Reason {
         STOP,
         LENGTH,
         TOOL_CALLS,
diff --git a/gradle.properties b/gradle.properties
index 7bd6632..443d8c7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,6 +2,6 @@
 useAPI = true
 javaVersion = 25
 
-coreVersion = 2.1.5
+coreVersion = 2.1.5.1
 pluginAPIVersion = 1.1.4.1
 APIVersion = 1.0-SNAPSHOT
\ No newline at end of file