diff --git a/README.md b/README.md
index 75918843..67611595 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ matter what URL the browser requests.
 default to either:
 
 - http://localhost:3000 (if in development mode)
-- https://prototype-signer-service.pendulumchain.tech (if in production mode)
+- https://prototype-signer-service-polygon.pendulumchain.tech (if in production mode)
 
 ## Fixing type issues
 
diff --git a/src/constants/constants.ts b/src/constants/constants.ts
index 4be6e9f6..27007881 100644
--- a/src/constants/constants.ts
+++ b/src/constants/constants.ts
@@ -10,4 +10,4 @@ export const NABLA_ROUTER = '6buMJsFCbXpHRyacKTjBn3Jss241b2aA7CZf9tKzKHMJWpcJ';
 export const TRANSFER_WAITING_TIME_SECONDS = 6000;
 export const SIGNING_SERVICE_URL =
   config.maybeSignerServiceUrl ||
-  (config.isProd ? 'https://prototype-signer-service.pendulumchain.tech' : 'http://localhost:3000');
+  (config.isProd ? 'https://prototype-signer-service-polygon.pendulumchain.tech' : 'http://localhost:3000');