diff --git a/rapyuta_io/clients/core_api_client.py b/rapyuta_io/clients/core_api_client.py
index b38dc7b3..d7e0788d 100644
--- a/rapyuta_io/clients/core_api_client.py
+++ b/rapyuta_io/clients/core_api_client.py
@@ -149,6 +149,13 @@ def remove_user_from_project(self, project_guid, user_guid):
         response = RestClient(url).method(HttpMethod.DELETE).headers(headers).execute(payload)
         get_api_response_data(response, parse_full=True)
 
+    def update_user_role(self, project_guid, user_guid, user_role=None):
+        url = '{}{}/{}/updaterole'.format(self._core_api_host, self.PROJECT_PATH, project_guid)
+        headers = create_auth_header(self._auth_token, self._project)
+        payload = {'userGUID': user_guid, 'userRole': user_role}
+        response = RestClient(url).method(HttpMethod.PUT).headers(headers).execute(payload)
+        get_api_response_data(response, parse_full=True)
+
     def create_secret(self, secret):
         url = self._core_api_host + self.SECRET_PATH + '/create'
         headers = create_auth_header(self._auth_token, self._project)
diff --git a/rapyuta_io/rio_client.py b/rapyuta_io/rio_client.py
index 134151f6..c01f8b61 100644
--- a/rapyuta_io/rio_client.py
+++ b/rapyuta_io/rio_client.py
@@ -1506,6 +1506,29 @@ def remove_user_from_project(self, project_guid, user_guid):
         """
         return self._core_api_client.remove_user_from_project(project_guid=project_guid, user_guid=user_guid)
 
+    def update_user_role(self, project_guid, user_guid, user_role):
+
+        """
+        Upate a user's role in a project.
+
+        :param project_guid: Project's GUID
+        :type project_guid: str
+        :param user_guid: User's GUID
+        :type user_guid: str
+        :param user_role: User's role
+        :type user_role: str
+
+        Following example demonstrates how to update a User's role in a Project.
+
+            >>> client = Client(auth_token='auth_token')
+            >>> client.update_user_role(project_guid='project_guid', user_guid='user_guid', user_role='admin')
+
+        """
+        return self._core_api_client.update_user_role(
+            project_guid=project_guid,
+            user_guid=user_guid,
+            user_role=user_role)
+
     def create_secret(self, secret):
         """
         Create a new Secret on the Platform under the project.