diff --git a/dat-gateway/src/main/java/io/shinhanlife/dat/mcg/presentation/ChatController.java b/dat-gateway/src/main/java/io/shinhanlife/dat/mcg/presentation/ChatController.java
index c87f9eb4..3e76c503 100644
--- a/dat-gateway/src/main/java/io/shinhanlife/dat/mcg/presentation/ChatController.java
+++ b/dat-gateway/src/main/java/io/shinhanlife/dat/mcg/presentation/ChatController.java
@@ -99,7 +99,7 @@ public class ChatController {
             if ("Qwen3-Coder".equalsIgnoreCase(selectedModel) || "Gemma-4-31B".equalsIgnoreCase(selectedModel)) {
                 // 사내 LiteLLM 환경 동적 ChatModel 생성
                 String liteLlmBaseUrl = "https://dev-iam-litellm.shinhanlife.co.kr:18020";
-                String apiKey = "Gemma-4-31B".equalsIgnoreCase(selectedModel) ? "sk-EH107wYBZuU6RUTqthR17A" : "sk-UJ2IRenvaMPbY3ozQdj6zw";
+                String apiKey = "Gemma-4-31B".equalsIgnoreCase(selectedModel) ? "sk-EH107wYBZuu6RUTqthRl7A" : "sk-UJ2IRenvaMPbY3ozQdj6zw";
                 
                 org.springframework.ai.openai.api.OpenAiApi openAiApi = org.springframework.ai.openai.api.OpenAiApi.builder()
                         .baseUrl(liteLlmBaseUrl)
diff --git a/dat-gateway/src/main/resources/application.yml b/dat-gateway/src/main/resources/application.yml
index 03409397..bb7eb7a4 100644
--- a/dat-gateway/src/main/resources/application.yml
+++ b/dat-gateway/src/main/resources/application.yml
@@ -24,7 +24,7 @@ shinhan:
   ai:
     base-url: https://dev-iam-litellm.shinhanlife.co.kr:18020
     qwen-key: sk-UJ2IRenvaMPbY3ozQdj6zw
-    gemma-key: sk-EH107wYBZuU6RUTqthR17A
+    gemma-key: sk-EH107wYBZuu6RUTqthRl7A
 
 server:
   port: 8081