diff --git a/src/Managing.Api/appsettings.Sandbox.json b/src/Managing.Api/appsettings.Sandbox.json
index 381cd427..2d40b09d 100644
--- a/src/Managing.Api/appsettings.Sandbox.json
+++ b/src/Managing.Api/appsettings.Sandbox.json
@@ -9,7 +9,7 @@
     "Token": "R2FasLHQ3wdDOJ0nxq7wZ0OXe2yjPNW9mfZkbAjF35d1z7xGlSv4eY0y_AS6bvaVmPA0ETUMXHU1ftTNNFRDkA=="
   },
   "Kaigen": {
-    "BaseUrl": "https://srv-captain--kaigen-back:3000"
+    "BaseUrl": "http://srv-captain--kaigen-back:3000"
   },
   "Web3Proxy": {
     "BaseUrl": "http://srv-captain--web3-proxy:4111",