diff --git a/API.md b/API.md
index a45e989..c4b0103 100644
--- a/API.md
+++ b/API.md
@@ -332,7 +332,10 @@ signIn(
     authorizationCode?: string,
     sessionState?: string,
     authState?: string,
-    callback?: (response: BasicUserInfo) => void
+    callback?: (response: BasicUserInfo) => void,
+    tokenRequestConfig?: {
+        params: Record<string, unknown>
+    }
 );
 ```
 
@@ -348,6 +351,15 @@ signIn(
    The `signIn` method can be passed the state parameter as an argument, which will be used to obtain the token during the token-request phase of the method.
 5. **callback?**: (response: [`BasicUserInfo`](#basicuserinfo)) => `void`
    A callback function that fires when sign-in is successful. The callback function takes an object of type [`BasicUserInfo`](#basicuserinfo) as an argument.
+6. **tokenRequestConfig?**: `object` (optional)
+    An optional configuration object that allows you to augment the token request.
+    - `params` (Mandatory): Key-value pairs to be sent as additional parameters in the token request payload.
+
+       ```TypeScript
+       tokenRequestConfig: {
+           params: Record<string, unknown>
+       }
+       ```
 
 The `sign-in` hook is used to fire a callback function after signing out is successful. Check the [`on()`](#on) section for more information.
 #### Example
diff --git a/lib/package.json b/lib/package.json
index 9a4c6e0..6a4f2a0 100755
--- a/lib/package.json
+++ b/lib/package.json
@@ -37,7 +37,7 @@
     "author": "WSO2",
     "license": "Apache-2.0",
     "dependencies": {
-        "@asgardeo/auth-spa": "^3.0.7"
+        "@asgardeo/auth-spa": "^3.1.0"
     },
     "devDependencies": {
         "@babel/cli": "^7.19.3",
diff --git a/lib/src/api.ts b/lib/src/api.ts
index 1682bcd..c0c35d4 100644
--- a/lib/src/api.ts
+++ b/lib/src/api.ts
@@ -81,10 +81,13 @@ class AuthAPI {
         authorizationCode: string,
         sessionState: string,
         authState?: string,
-        callback?: (response: BasicUserInfo) => void
+        callback?: (response: BasicUserInfo) => void,
+        tokenRequestConfig?: {
+            params: Record<string, unknown>
+        }
     ): Promise<BasicUserInfo> {
         return this._client
-            .signIn(config, authorizationCode, sessionState, authState)
+            .signIn(config, authorizationCode, sessionState, authState, tokenRequestConfig)
             .then(async (response: BasicUserInfo) => {
                 if (!response) {
                     return;
diff --git a/lib/src/authenticate.tsx b/lib/src/authenticate.tsx
index cec5164..8f10ec7 100644
--- a/lib/src/authenticate.tsx
+++ b/lib/src/authenticate.tsx
@@ -85,7 +85,10 @@ const AuthProvider: FunctionComponent<PropsWithChildren<AuthProviderPropsInterfa
         authorizationCode?: string,
         sessionState?: string,
         authState?: string,
-        callback?: (response: BasicUserInfo) => void
+        callback?: (response: BasicUserInfo) => void,
+        tokenRequestConfig?: {
+            params: Record<string, unknown>
+        }
     ): Promise<BasicUserInfo> => {
         try {
             setError(null);
@@ -96,7 +99,8 @@ const AuthProvider: FunctionComponent<PropsWithChildren<AuthProviderPropsInterfa
                 authorizationCode,
                 sessionState,
                 authState,
-                callback
+                callback,
+                tokenRequestConfig
             );
         } catch (error) {
             return Promise.reject(error);
diff --git a/lib/src/models.ts b/lib/src/models.ts
index 25b733f..43c165d 100644
--- a/lib/src/models.ts
+++ b/lib/src/models.ts
@@ -91,7 +91,10 @@ export interface AuthContextInterface {
         authorizationCode?: string,
         sessionState?: string,
         state?: string,
-        callback?: (response: BasicUserInfo) => void
+        callback?: (response: BasicUserInfo) => void,
+        tokenRequestConfig?: {
+            params: Record<string, unknown>
+        }
     ) => Promise<BasicUserInfo>;
     signOut: (callback?: (response: boolean) => void) => Promise<boolean>;
     getBasicUserInfo(): Promise<BasicUserInfo>;