diff --git a/app/scripts/migrations/135.test.ts b/app/scripts/migrations/135.test.ts
new file mode 100644
index 000000000000..137f55ef2b5c
--- /dev/null
+++ b/app/scripts/migrations/135.test.ts
@@ -0,0 +1,131 @@
+import { cloneDeep } from 'lodash';
+import { NetworkState } from '@metamask/network-controller';
+import { infuraProjectId } from '../../../shared/constants/network';
+import { migrate, version } from './135';
+
+const oldVersion = 134;
+const BASE_CHAIN_ID = '0x2105';
+
+describe('migration #135', () => {
+  it('updates the version metadata', async () => {
+    const oldStorage = {
+      meta: { version: oldVersion },
+      data: {},
+    };
+
+    const newStorage = await migrate(cloneDeep(oldStorage));
+
+    expect(newStorage.meta).toStrictEqual({ version });
+  });
+
+  describe('Base Network Migration', () => {
+    it('does nothing if networkConfigurationsByChainId is not in state', async () => {
+      const oldState = {
+        OtherController: {},
+      };
+
+      const transformedState = await migrate({
+        meta: { version: oldVersion },
+        data: cloneDeep(oldState),
+      });
+
+      expect(transformedState.data).toEqual(oldState);
+    });
+
+    it('replaces "https://mainnet.base.org" with "base-mainnet.infura.io" when it exists', async () => {
+      const oldState = {
+        NetworkController: {
+          networkConfigurationsByChainId: {
+            [BASE_CHAIN_ID]: {
+              rpcEndpoints: [
+                {
+                  url: 'https://mainnet.base.org',
+                  type: 'custom',
+                  networkClientId: 'base-mainnet',
+                },
+              ],
+              defaultRpcEndpointIndex: 0,
+            },
+          },
+        },
+      };
+
+      const transformedState = await migrate({
+        meta: { version: oldVersion },
+        data: cloneDeep(oldState),
+      });
+
+      const updatedNetworkController = transformedState.data
+        .NetworkController as NetworkState;
+
+      expect(
+        updatedNetworkController.networkConfigurationsByChainId[BASE_CHAIN_ID]
+          .rpcEndpoints[0].url,
+      ).toEqual(`https://base-mainnet.infura.io/v3/${infuraProjectId}`);
+    });
+
+    it('does not modify RPC endpoints other than "https://mainnet.base.org"', async () => {
+      const oldState = {
+        NetworkController: {
+          networkConfigurationsByChainId: {
+            [BASE_CHAIN_ID]: {
+              rpcEndpoints: [
+                {
+                  url: 'https://other.rpc',
+                  type: 'custom',
+                  networkClientId: 'other-mainnet',
+                },
+              ],
+              defaultRpcEndpointIndex: 0,
+            },
+          },
+        },
+      };
+
+      const transformedState = await migrate({
+        meta: { version: oldVersion },
+        data: cloneDeep(oldState),
+      });
+
+      const updatedNetworkController = transformedState.data
+        .NetworkController as NetworkState;
+
+      expect(
+        updatedNetworkController.networkConfigurationsByChainId[BASE_CHAIN_ID]
+          .rpcEndpoints[0].url,
+      ).toEqual('https://other.rpc');
+    });
+
+    it('keeps defaultRpcEndpointIndex unchanged when replacing "https://mainnet.base.org"', async () => {
+      const oldState = {
+        NetworkController: {
+          networkConfigurationsByChainId: {
+            [BASE_CHAIN_ID]: {
+              rpcEndpoints: [
+                {
+                  url: 'https://mainnet.base.org',
+                  type: 'custom',
+                  networkClientId: 'base-mainnet',
+                },
+              ],
+              defaultRpcEndpointIndex: 0,
+            },
+          },
+        },
+      };
+
+      const transformedState = await migrate({
+        meta: { version: oldVersion },
+        data: cloneDeep(oldState),
+      });
+
+      const updatedNetworkController = transformedState.data
+        .NetworkController as NetworkState;
+
+      expect(
+        updatedNetworkController.networkConfigurationsByChainId[BASE_CHAIN_ID]
+          .defaultRpcEndpointIndex,
+      ).toEqual(0);
+    });
+  });
+});
diff --git a/app/scripts/migrations/135.ts b/app/scripts/migrations/135.ts
new file mode 100644
index 000000000000..637ac8b7a57f
--- /dev/null
+++ b/app/scripts/migrations/135.ts
@@ -0,0 +1,78 @@
+import { hasProperty, isObject } from '@metamask/utils';
+import { cloneDeep } from 'lodash';
+import { infuraProjectId } from '../../../shared/constants/network';
+
+export const version = 135;
+const BASE_CHAIN_ID = '0x2105';
+
+/**
+ * Replace all occurrences of "https://mainnet.base.org" with
+ * "https://base-mainnet.infura.io/v3/${infuraProjectId}" in the Base network configuration.
+ *
+ * @param originalVersionedData - Versioned MetaMask extension state, exactly
+ * what we persist to dist.
+ * @param originalVersionedData.meta - State metadata.
+ * @param originalVersionedData.meta.version - The current state version.
+ * @param originalVersionedData.data - The persisted MetaMask state, keyed by
+ * controller.
+ * @returns Updated versioned MetaMask extension state.
+ */
+export async function migrate(originalVersionedData: {
+  meta: { version: number };
+  data: Record<string, unknown>;
+}) {
+  const versionedData = cloneDeep(originalVersionedData);
+  versionedData.meta.version = version;
+  versionedData.data = transformState(versionedData.data);
+  return versionedData;
+}
+
+function transformState(state: Record<string, unknown>) {
+  if (
+    hasProperty(state, 'NetworkController') &&
+    isObject(state.NetworkController) &&
+    hasProperty(state.NetworkController, 'networkConfigurationsByChainId') &&
+    isObject(state.NetworkController.networkConfigurationsByChainId)
+  ) {
+    const { networkConfigurationsByChainId } = state.NetworkController;
+
+    // Check for Base network configuration (chainId 8453 / 0x2105)
+    const baseNetworkConfig = networkConfigurationsByChainId[BASE_CHAIN_ID];
+    if (isObject(baseNetworkConfig)) {
+      const { rpcEndpoints } = baseNetworkConfig;
+
+      if (Array.isArray(rpcEndpoints)) {
+        // Find the first occurrence of "https://mainnet.base.org"
+        // rpc URL are Unique so we can use findIndex
+        const index = rpcEndpoints.findIndex(
+          (endpoint) =>
+            isObject(endpoint) && endpoint.url === 'https://mainnet.base.org',
+        );
+
+        if (index !== -1) {
+          // Replace the URL with the new Infura URL
+          rpcEndpoints[index] = {
+            ...rpcEndpoints[index],
+            url: `https://base-mainnet.infura.io/v3/${infuraProjectId}`,
+          };
+
+          // Update the configuration
+          networkConfigurationsByChainId[BASE_CHAIN_ID] = {
+            ...baseNetworkConfig,
+            rpcEndpoints,
+          };
+
+          return {
+            ...state,
+            NetworkController: {
+              ...state.NetworkController,
+              networkConfigurationsByChainId,
+            },
+          };
+        }
+      }
+    }
+  }
+
+  return state;
+}
diff --git a/app/scripts/migrations/index.js b/app/scripts/migrations/index.js
index 887732ad9dbc..459578ba3eda 100644
--- a/app/scripts/migrations/index.js
+++ b/app/scripts/migrations/index.js
@@ -155,6 +155,7 @@ const migrations = [
   require('./132'),
   require('./133'),
   require('./134'),
+  require('./135'),
 ];
 
 export default migrations;
diff --git a/shared/constants/network.test.ts b/shared/constants/network.test.ts
index 9d9ca72b46cd..1fe489488f8f 100644
--- a/shared/constants/network.test.ts
+++ b/shared/constants/network.test.ts
@@ -87,11 +87,11 @@ describe('NetworkConstants', () => {
       expect(zksyncEraRpc.rpcEndpoints[0].url).not.toContain('infura.io');
     });
 
-    it('base entry should not use Infura', () => {
+    it('base entry should use Infura', () => {
       const [baseRpc] = FEATURED_RPCS.filter(
         (rpc) => rpc.chainId === CHAIN_IDS.BASE,
       );
-      expect(baseRpc.rpcEndpoints[0].url).not.toContain('infura.io');
+      expect(baseRpc.rpcEndpoints[0].url).toContain('infura.io');
     });
   });
 });
diff --git a/shared/constants/network.ts b/shared/constants/network.ts
index 41f1d9fd0d95..5901d8811c5d 100644
--- a/shared/constants/network.ts
+++ b/shared/constants/network.ts
@@ -1067,7 +1067,7 @@ export const FEATURED_RPCS: AddNetworkFields[] = [
     nativeCurrency: CURRENCY_SYMBOLS.ETH,
     rpcEndpoints: [
       {
-        url: `https://mainnet.base.org`,
+        url: `https://base-mainnet.infura.io/v3/${infuraProjectId}`,
         type: RpcEndpointType.Custom,
       },
     ],