diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2da5ed27..41f6be1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ The file format of it is based on [Keep a Changelog](http://keepachangelog.com/e
 For public Changelog covering all changes done to Pipedrive’s API, webhooks and app extensions platforms, see [public Changelog](https://pipedrive.readme.io/docs/changelog) with discussion area in [Developers Community](https://devcommunity.pipedrive.com/c/documentation/changelog/19).
 
 ## [Unreleased]
+### Added
+- Added `project_id` parameter to `POST /v1/files` endpoint
+- Added `project_id` & `project_name` properties to responses in `/v1/files/*` endpoints
 
 ## [33.2.0] - 2026-05-29
 ### Added
diff --git a/src/versions/v1/api/files-api.ts b/src/versions/v1/api/files-api.ts
index ae450d64..2e3ba381 100644
--- a/src/versions/v1/api/files-api.ts
+++ b/src/versions/v1/api/files-api.ts
@@ -51,10 +51,11 @@ export const FilesApiAxiosParamCreator = function (configuration?: Configuration
          * @param {number} [product_id] The ID of the product to associate file(s) with
          * @param {number} [activity_id] The ID of the activity to associate file(s) with
          * @param {string} [lead_id] The ID of the lead to associate file(s) with
+         * @param {number} [project_id] The ID of the project to associate file(s) with
 
          * @throws {RequiredError}
          */
-        addFile: async (file: File, deal_id?: number, person_id?: number, org_id?: number, product_id?: number, activity_id?: number, lead_id?: string, ): Promise<RequestArgs> => {
+        addFile: async (file: File, deal_id?: number, person_id?: number, org_id?: number, product_id?: number, activity_id?: number, lead_id?: string, project_id?: number, ): Promise<RequestArgs> => {
             // verify required parameter 'file' is not null or undefined
             assertParamExists('addFile', 'file', file)
             const localVarPath = `/files`;
@@ -106,6 +107,10 @@ export const FilesApiAxiosParamCreator = function (configuration?: Configuration
                 localVarFormParams.append('lead_id', lead_id as any);
             }
     
+            if (project_id !== undefined) { 
+                localVarFormParams.append('project_id', project_id as any);
+            }
+    
     
             localVarHeaderParameter['Content-Type'] = 'multipart/form-data';
     
@@ -515,11 +520,12 @@ export const FilesApiFp = function(configuration?: Configuration) {
          * @param {number} [product_id] The ID of the product to associate file(s) with
          * @param {number} [activity_id] The ID of the activity to associate file(s) with
          * @param {string} [lead_id] The ID of the lead to associate file(s) with
+         * @param {number} [project_id] The ID of the project to associate file(s) with
 
          * @throws {RequiredError}
          */
-        async addFile(file: File, deal_id?: number, person_id?: number, org_id?: number, product_id?: number, activity_id?: number, lead_id?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddFileResponse>> {
-            const localVarAxiosArgs = await localVarAxiosParamCreator.addFile(file, deal_id, person_id, org_id, product_id, activity_id, lead_id, );
+        async addFile(file: File, deal_id?: number, person_id?: number, org_id?: number, product_id?: number, activity_id?: number, lead_id?: string, project_id?: number, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddFileResponse>> {
+            const localVarAxiosArgs = await localVarAxiosParamCreator.addFile(file, deal_id, person_id, org_id, product_id, activity_id, lead_id, project_id, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
         /**
@@ -628,7 +634,7 @@ export const FilesApiFactory = function (configuration?: Configuration, basePath
          * @throws {RequiredError}
          */
         addFile(requestParameters: FilesApiAddFileRequest, ): Promise<AddFileResponse> {
-            return localVarFp.addFile(requestParameters.file, requestParameters.deal_id, requestParameters.person_id, requestParameters.org_id, requestParameters.product_id, requestParameters.activity_id, requestParameters.lead_id, ).then((request) => request(axios, basePath));
+            return localVarFp.addFile(requestParameters.file, requestParameters.deal_id, requestParameters.person_id, requestParameters.org_id, requestParameters.product_id, requestParameters.activity_id, requestParameters.lead_id, requestParameters.project_id, ).then((request) => request(axios, basePath));
         },
         /**
          * Creates a new empty file in the remote location (`googledrive`) that will be linked to the item you supply. For more information, see the tutorial for <a href=\"https://pipedrive.readme.io/docs/adding-a-remote-file\" target=\"_blank\" rel=\"noopener noreferrer\">adding a remote file</a>.
@@ -757,6 +763,13 @@ export interface FilesApiAddFileRequest {
      * @memberof FilesApiAddFile
      */
     readonly lead_id?: string
+
+    /**
+     * The ID of the project to associate file(s) with
+     * @type {number}
+     * @memberof FilesApiAddFile
+     */
+    readonly project_id?: number
 }
 
 /**
@@ -950,7 +963,7 @@ export class FilesApi extends BaseAPI {
      * @memberof FilesApi
      */
     public addFile(requestParameters: FilesApiAddFileRequest, ) {
-        return FilesApiFp(this.configuration).addFile(requestParameters.file, requestParameters.deal_id, requestParameters.person_id, requestParameters.org_id, requestParameters.product_id, requestParameters.activity_id, requestParameters.lead_id, ).then((request) => request(this.axios, this.basePath));
+        return FilesApiFp(this.configuration).addFile(requestParameters.file, requestParameters.deal_id, requestParameters.person_id, requestParameters.org_id, requestParameters.product_id, requestParameters.activity_id, requestParameters.lead_id, requestParameters.project_id, ).then((request) => request(this.axios, this.basePath));
     }
 
     /**
diff --git a/src/versions/v1/models/get-files-response-data-inner.ts b/src/versions/v1/models/get-files-response-data-inner.ts
index 9e127a60..1ce8b6c4 100644
--- a/src/versions/v1/models/get-files-response-data-inner.ts
+++ b/src/versions/v1/models/get-files-response-data-inner.ts
@@ -61,6 +61,11 @@ export interface GetFilesResponseDataInner {
     */
     'lead_id'?: string;
     /**
+    * The ID of the project to associate the file with
+    * @type {number}
+    */
+    'project_id'?: number;
+    /**
     * The date and time when the file was added/created. Format: YYYY-MM-DD HH:MM:SS
     * @type {string}
     */
@@ -146,6 +151,11 @@ export interface GetFilesResponseDataInner {
     */
     'lead_name'?: string;
     /**
+    * The name of the project associated with the file
+    * @type {string}
+    */
+    'project_name'?: string;
+    /**
     * The URL of the download file
     * @type {string}
     */