diff --git a/.changeset/chilled-comics-tickle.md b/.changeset/chilled-comics-tickle.md
new file mode 100644
index 00000000..70762945
--- /dev/null
+++ b/.changeset/chilled-comics-tickle.md
@@ -0,0 +1,5 @@
+---
+'@blocto/sdk': patch
+---
+
+migration testnet polygon_mumbai to polygon_amoy
diff --git a/packages/blocto-sdk/src/constants.ts b/packages/blocto-sdk/src/constants.ts
index 1d435ea6..13af16a6 100644
--- a/packages/blocto-sdk/src/constants.ts
+++ b/packages/blocto-sdk/src/constants.ts
@@ -27,8 +27,8 @@ export const ETH_RPC_LIST: Mapping = {
 
   // Polygon Mainnet
   137: 'https://rpc-mainnet.maticvigil.com/',
-  // Polygon Testnet
-  80001: 'https://rpc-mumbai.matic.today/',
+  // Polygon Amoy Testnet
+  80002: 'https://rpc-amoy.polygon.technology/',
 
   // Avalanche Mainnet
   43114: 'https://api.avax.network/ext/bc/C/rpc',