diff --git a/.github/workflows/deploy-java.yml b/.github/workflows/deploy-java.yml
index 3a19d80b..db0bc3e0 100644
--- a/.github/workflows/deploy-java.yml
+++ b/.github/workflows/deploy-java.yml
@@ -30,7 +30,7 @@ jobs:
           echo "LOKI_USERNAME=${{ secrets.LOKI_USERNAME }}" >> .env.prod
           echo "LOKI_PASSWORD=${{ secrets.LOKI_PASSWORD }}" >> .env.prod
           echo "ENV_NAME=${{ secrets.ENV_NAME }}" >> .env.prod
-          echo "FASTAPI_HOST=${{ secrets.FASTAPI_SERVER_HOST }}" >> .env.prod
+          echo "FASTAPI_SERVER_HOST=${{ secrets.FASTAPI_SERVER_HOST }}" >> .env.prod
 
       - name: Set repo lowercase
         run: echo "REPO_LC=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV
diff --git a/apps/user-service/src/main/resources/application.yml b/apps/user-service/src/main/resources/application.yml
index 7fd5893d..b3b2dcba 100644
--- a/apps/user-service/src/main/resources/application.yml
+++ b/apps/user-service/src/main/resources/application.yml
@@ -16,5 +16,5 @@ mybatis:
 # 외부 API 연동을 위한 설정 섹션
 api:
   fastapi:
-    url: http://127.0.0.1:8000  # FastAPI 서버의 기본 URL
+    url: ${FASTAPI_SERVER_HOST:-http://127.0.0.1:8000}
     timeout: 10000  # API 요청 타임아웃 (밀리초 단위)
\ No newline at end of file