diff --git a/ecosystem/typescript/sdk_v2/src/utils/const.ts b/ecosystem/typescript/sdk_v2/src/utils/const.ts
index 7fc138d12cd7b1..9ab4ac01bf3c01 100644
--- a/ecosystem/typescript/sdk_v2/src/utils/const.ts
+++ b/ecosystem/typescript/sdk_v2/src/utils/const.ts
@@ -1,3 +1,3 @@
 import { Network } from "./api-endpoints";
 
-export const DEFAULT_NETWORK = Network.TESTNET;
+export const DEFAULT_NETWORK = Network.DEVNET;
diff --git a/ecosystem/typescript/sdk_v2/tests/unit/aptos_config.test.ts b/ecosystem/typescript/sdk_v2/tests/unit/aptos_config.test.ts
index 97c17eb93ae3e6..8e79dc2275ad06 100644
--- a/ecosystem/typescript/sdk_v2/tests/unit/aptos_config.test.ts
+++ b/ecosystem/typescript/sdk_v2/tests/unit/aptos_config.test.ts
@@ -2,23 +2,23 @@ import { Aptos, AptosConfig } from "../../src";
 import { Network } from "../../src/utils/api-endpoints";
 
 describe("aptos config", () => {
-  test("it should set TESTNET network if network is not provided", async () => {
+  test("it should set DEVNET network if network is not provided", async () => {
     const aptos = new Aptos();
-    expect(aptos.config.network).toEqual("testnet");
-    expect(aptos.config.fullnode).toEqual("https://fullnode.testnet.aptoslabs.com/v1");
-    expect(aptos.config.faucet).toEqual("https://faucet.testnet.aptoslabs.com");
-    expect(aptos.config.indexer).toEqual("https://indexer-testnet.staging.gcp.aptosdev.com/v1/graphql");
+    expect(aptos.config.network).toEqual("devnet");
+    expect(aptos.config.fullnode).toEqual("https://fullnode.devnet.aptoslabs.com/v1");
+    expect(aptos.config.faucet).toEqual("https://faucet.devnet.aptoslabs.com");
+    expect(aptos.config.indexer).toEqual("https://indexer-devnet.staging.gcp.aptosdev.com/v1/graphql");
   });
 
   test("it should set urls based on the provided network", async () => {
     const settings: AptosConfig = {
-      network: Network.DEVNET,
+      network: Network.TESTNET,
     };
     const aptos = new Aptos(settings);
-    expect(aptos.config.network).toEqual("devnet");
-    expect(aptos.config.fullnode).toEqual("https://fullnode.devnet.aptoslabs.com/v1");
-    expect(aptos.config.faucet).toEqual("https://faucet.devnet.aptoslabs.com");
-    expect(aptos.config.indexer).toEqual("https://indexer-devnet.staging.gcp.aptosdev.com/v1/graphql");
+    expect(aptos.config.network).toEqual("testnet");
+    expect(aptos.config.fullnode).toEqual("https://fullnode.testnet.aptoslabs.com/v1");
+    expect(aptos.config.faucet).toEqual("https://faucet.testnet.aptoslabs.com");
+    expect(aptos.config.indexer).toEqual("https://indexer-testnet.staging.gcp.aptosdev.com/v1/graphql");
   });
 
   test("it should set urls based on a local network", async () => {