diff --git a/packages/chains/src/polygonMumbai.ts b/packages/chains/src/polygonMumbai.ts
index ad709a29..8f377062 100644
--- a/packages/chains/src/polygonMumbai.ts
+++ b/packages/chains/src/polygonMumbai.ts
@@ -15,10 +15,10 @@ export const polygonMumbai = {
       webSocket: ['wss://polygon-mumbai.infura.io/ws/v3'],
     },
     default: {
-      http: ['https://matic-mumbai.chainstacklabs.com'],
+      http: ['https://rpc-mumbai.matic.today'],
     },
     public: {
-      http: ['https://matic-mumbai.chainstacklabs.com'],
+      http: ['https://rpc-mumbai.matic.today'],
     },
   },
   blockExplorers: {