diff --git a/src/controllers/GroupContactController.ts b/src/controllers/GroupContactController.ts
index 3030de8..12518c2 100644
--- a/src/controllers/GroupContactController.ts
+++ b/src/controllers/GroupContactController.ts
@@ -1,9 +1,10 @@
-import { Authorized, Body, Delete, Get, JsonController, OnUndefined, Param, Post, QueryParam } from 'routing-controllers';
+import { Authorized, Body, Delete, Get, JsonController, OnUndefined, Param, Post, Put, QueryParam } from 'routing-controllers';
 import { OpenAPI, ResponseSchema } from 'routing-controllers-openapi';
 import { getConnectionManager, Repository } from 'typeorm';
-import { GroupContactNotFoundError } from '../errors/GroupContactErrors';
+import { GroupContactIdsNotMatchingError, GroupContactNotFoundError } from '../errors/GroupContactErrors';
 import { RunnerGroupNotFoundError } from '../errors/RunnerGroupErrors';
 import { CreateGroupContact } from '../models/actions/create/CreateGroupContact';
+import { UpdateGroupContact } from '../models/actions/update/UpdateGroupContact';
 import { GroupContact } from '../models/entities/GroupContact';
 import { ResponseEmpty } from '../models/responses/ResponseEmpty';
 import { ResponseGroupContact } from '../models/responses/ResponseGroupContact';
@@ -62,26 +63,27 @@ export class GroupContactController {
 		return (await this.contactRepository.findOne({ id: contact.id }, { relations: ['groups'] })).toResponse();
 	}
 
-	// @Put('/:id')
-	// @Authorized("DONOR:UPDATE")
-	// @ResponseSchema(ResponseDonor)
-	// @ResponseSchema(DonorNotFoundError, { statusCode: 404 })
-	// @ResponseSchema(DonorIdsNotMatchingError, { statusCode: 406 })
-	// @OpenAPI({ description: "Update the contact whose id you provided. <br> Please remember that ids can't be changed." })
-	// async put(@Param('id') id: number, @Body({ validate: true }) contact: UpdateDonor) {
-	// 	let oldDonor = await this.contactRepository.findOne({ id: id });
+	@Put('/:id')
+	@Authorized("CONTACT:UPDATE")
+	@ResponseSchema(ResponseGroupContact)
+	@ResponseSchema(GroupContactNotFoundError, { statusCode: 404 })
+	@ResponseSchema(GroupContactIdsNotMatchingError, { statusCode: 406 })
+	@ResponseSchema(RunnerGroupNotFoundError, { statusCode: 404 })
+	@OpenAPI({ description: "Update the contact whose id you provided. <br> Please remember that ids can't be changed." })
+	async put(@Param('id') id: number, @Body({ validate: true }) contact: UpdateGroupContact) {
+		let oldContact = await this.contactRepository.findOne({ id: id });
 
-	// 	if (!oldDonor) {
-	// 		throw new DonorNotFoundError();
-	// 	}
+		if (!oldContact) {
+			throw new GroupContactNotFoundError();
+		}
 
-	// 	if (oldDonor.id != contact.id) {
-	// 		throw new DonorIdsNotMatchingError();
-	// 	}
+		if (oldContact.id != contact.id) {
+			throw new GroupContactIdsNotMatchingError();
+		}
 
-	// 	await this.contactRepository.save(await contact.update(oldDonor));
-	// 	return new ResponseDonor(await this.contactRepository.findOne({ id: id }, { relations: ['donations', 'donations.runner', 'donations.runner.scans', 'donations.runner.scans.track'] }));
-	// }
+		await this.contactRepository.save(await contact.update(oldContact));
+		return (await this.contactRepository.findOne({ id: contact.id }, { relations: ['groups'] })).toResponse();
+	}
 
 	@Delete('/:id')
 	@Authorized("CONTACT:DELETE")