diff --git a/src/Managing.Api/appsettings.Sandbox.json b/src/Managing.Api/appsettings.Sandbox.json
index c5e1845e..edc00d40 100644
--- a/src/Managing.Api/appsettings.Sandbox.json
+++ b/src/Managing.Api/appsettings.Sandbox.json
@@ -13,7 +13,7 @@
     "AppSecret": "63Chz2z5M8TgR5qc8dznSLRAGTHTyPU4cjdQobrBF1Cx5tszZpTuFgyrRd7hZ2k6HpwDz3GEwQZzsCqHb8Z311bF"
   },
   "Kaigen": {
-    "BaseUrl": "https://kaigen-back-development.up.railway.app",
+    "BaseUrl": "https://kaigen-back-kaigen-stage.up.railway.app",
     "DebitEndpoint": "/api/credits/debit",
     "RefundEndpoint": "/api/credits/refund"
   },
diff --git a/src/Managing.Api/appsettings.json b/src/Managing.Api/appsettings.json
index dc55b4c9..09e7e569 100644
--- a/src/Managing.Api/appsettings.json
+++ b/src/Managing.Api/appsettings.json
@@ -27,7 +27,7 @@
     "TimeoutSeconds": 30
   },
   "Kaigen": {
-    "BaseUrl": "https://kaigen-back-development.up.railway.app",
+    "BaseUrl": "https://kaigen-back-kaigen-stage.up.railway.app",
     "DebitEndpoint": "/api/credits/debit",
     "RefundEndpoint": "/api/credits/refund"
   },