diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index fcade0b2..f194b1d5 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.435.0"
+  ".": "0.436.0"
 }
diff --git a/.stats.yml b/.stats.yml
index 4c9e8f9b..9cbf59fe 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 232
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-b27417de2b11e1ed32ccf399f6b52acd599a75ba910d7709028972960e12ba67.yml
-openapi_spec_hash: 82ef00d2d4f3a796ba181d2546c424bb
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-7da80155087dd9d883acaa10229e34ed5a3097f884c77b5f28c4c76a62b82432.yml
+openapi_spec_hash: c5050ba45eb587316583060c1efef8a8
 config_hash: 4b562e97b3d8b4cba758a87d4927a76d
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f10599f..b3a5b98f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.436.0 (2026-02-18)
+
+Full Changelog: [v0.435.0...v0.436.0](https://github.com/Increase/increase-typescript/compare/v0.435.0...v0.436.0)
+
+### Features
+
+* **api:** api update ([0df43c8](https://github.com/Increase/increase-typescript/commit/0df43c8e00a3fb3fabdf1c18d24f5f52c17decef))
+
 ## 0.435.0 (2026-02-17)
 
 Full Changelog: [v0.434.0...v0.435.0](https://github.com/Increase/increase-typescript/compare/v0.434.0...v0.435.0)
diff --git a/api.md b/api.md
index 6576ef45..35c250ef 100644
--- a/api.md
+++ b/api.md
@@ -874,7 +874,7 @@ Methods:
 
 - <code title="post /simulations/check_deposits/{check_deposit_id}/reject">client.simulations.checkDeposits.<a href="./src/resources/simulations/check-deposits.ts">reject</a>(checkDepositID) -> CheckDeposit</code>
 - <code title="post /simulations/check_deposits/{check_deposit_id}/return">client.simulations.checkDeposits.<a href="./src/resources/simulations/check-deposits.ts">return</a>(checkDepositID) -> CheckDeposit</code>
-- <code title="post /simulations/check_deposits/{check_deposit_id}/submit">client.simulations.checkDeposits.<a href="./src/resources/simulations/check-deposits.ts">submit</a>(checkDepositID) -> CheckDeposit</code>
+- <code title="post /simulations/check_deposits/{check_deposit_id}/submit">client.simulations.checkDeposits.<a href="./src/resources/simulations/check-deposits.ts">submit</a>(checkDepositID, { ...params }) -> CheckDeposit</code>
 
 ## InboundMailItems
 
diff --git a/package.json b/package.json
index 7ef247a8..080a2818 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "increase",
-  "version": "0.435.0",
+  "version": "0.436.0",
   "description": "The official TypeScript library for the Increase API",
   "author": "Increase <dev-feedback@increase.com>",
   "types": "dist/index.d.ts",
diff --git a/src/resources/simulations/check-deposits.ts b/src/resources/simulations/check-deposits.ts
index e18daa6b..6c8c8565 100644
--- a/src/resources/simulations/check-deposits.ts
+++ b/src/resources/simulations/check-deposits.ts
@@ -52,7 +52,47 @@ export class CheckDeposits extends APIResource {
    *   );
    * ```
    */
-  submit(checkDepositID: string, options?: RequestOptions): APIPromise<CheckDepositsAPI.CheckDeposit> {
-    return this._client.post(path`/simulations/check_deposits/${checkDepositID}/submit`, options);
+  submit(
+    checkDepositID: string,
+    body: CheckDepositSubmitParams,
+    options?: RequestOptions,
+  ): APIPromise<CheckDepositsAPI.CheckDeposit> {
+    return this._client.post(path`/simulations/check_deposits/${checkDepositID}/submit`, {
+      body,
+      ...options,
+    });
   }
 }
+
+export interface CheckDepositSubmitParams {
+  /**
+   * If set, the simulation will use these values for the check's scanned MICR data.
+   */
+  scan?: CheckDepositSubmitParams.Scan;
+}
+
+export namespace CheckDepositSubmitParams {
+  /**
+   * If set, the simulation will use these values for the check's scanned MICR data.
+   */
+  export interface Scan {
+    /**
+     * The account number to be returned in the check deposit's scan data.
+     */
+    account_number: string;
+
+    /**
+     * The routing number to be returned in the check deposit's scan data.
+     */
+    routing_number: string;
+
+    /**
+     * The auxiliary on-us data to be returned in the check deposit's scan data.
+     */
+    auxiliary_on_us?: string;
+  }
+}
+
+export declare namespace CheckDeposits {
+  export { type CheckDepositSubmitParams as CheckDepositSubmitParams };
+}
diff --git a/src/resources/simulations/index.ts b/src/resources/simulations/index.ts
index ac5643f2..9465fe77 100644
--- a/src/resources/simulations/index.ts
+++ b/src/resources/simulations/index.ts
@@ -25,7 +25,7 @@ export { CardRefunds, type CardRefundCreateParams } from './card-refunds';
 export { CardReversals, type CardReversalCreateParams } from './card-reversals';
 export { CardSettlements, type CardSettlementCreateParams } from './card-settlements';
 export { CardTokens, type CardTokenCreateParams } from './card-tokens';
-export { CheckDeposits } from './check-deposits';
+export { CheckDeposits, type CheckDepositSubmitParams } from './check-deposits';
 export { CheckTransfers } from './check-transfers';
 export {
   DigitalWalletTokenRequests,
diff --git a/src/resources/simulations/simulations.ts b/src/resources/simulations/simulations.ts
index 2b3251be..3e5d0909 100644
--- a/src/resources/simulations/simulations.ts
+++ b/src/resources/simulations/simulations.ts
@@ -40,7 +40,7 @@ import { CardSettlementCreateParams, CardSettlements } from './card-settlements'
 import * as CardTokensAPI from './card-tokens';
 import { CardTokenCreateParams, CardTokens } from './card-tokens';
 import * as CheckDepositsAPI from './check-deposits';
-import { CheckDeposits } from './check-deposits';
+import { CheckDepositSubmitParams, CheckDeposits } from './check-deposits';
 import * as CheckTransfersAPI from './check-transfers';
 import { CheckTransfers } from './check-transfers';
 import * as DigitalWalletTokenRequestsAPI from './digital-wallet-token-requests';
@@ -282,7 +282,7 @@ export declare namespace Simulations {
     type InboundFednowTransferCreateParams as InboundFednowTransferCreateParams,
   };
 
-  export { CheckDeposits as CheckDeposits };
+  export { CheckDeposits as CheckDeposits, type CheckDepositSubmitParams as CheckDepositSubmitParams };
 
   export {
     InboundMailItems as InboundMailItems,
diff --git a/src/version.ts b/src/version.ts
index 756b1235..16464195 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '0.435.0'; // x-release-please-version
+export const VERSION = '0.436.0'; // x-release-please-version
diff --git a/tests/api-resources/simulations/check-deposits.test.ts b/tests/api-resources/simulations/check-deposits.test.ts
index b3a48572..986385ca 100644
--- a/tests/api-resources/simulations/check-deposits.test.ts
+++ b/tests/api-resources/simulations/check-deposits.test.ts
@@ -31,7 +31,7 @@ describe('resource checkDeposits', () => {
   });
 
   test('submit', async () => {
-    const responsePromise = client.simulations.checkDeposits.submit('check_deposit_f06n9gpg7sxn8t19lfc1');
+    const responsePromise = client.simulations.checkDeposits.submit('check_deposit_f06n9gpg7sxn8t19lfc1', {});
     const rawResponse = await responsePromise.asResponse();
     expect(rawResponse).toBeInstanceOf(Response);
     const response = await responsePromise;