diff --git a/api/src/modules/custom-projects/custom-projects.controller.ts b/api/src/modules/custom-projects/custom-projects.controller.ts
index 72f96eba..08d9f5c8 100644
--- a/api/src/modules/custom-projects/custom-projects.controller.ts
+++ b/api/src/modules/custom-projects/custom-projects.controller.ts
@@ -17,6 +17,7 @@ import { AuthGuard } from '@nestjs/passport';
 import { RolesGuard } from '@api/modules/auth/guards/roles.guard';
 import { RequiredRoles } from '@api/modules/auth/decorators/roles.decorator';
 import { ROLES } from '@shared/entities/users/roles.enum';
+import { CustomProject } from '@shared/entities/custom-project.entity';
 
 @Controller()
 export class CustomProjectsController {
@@ -145,6 +146,35 @@ export class CustomProjectsController {
     );
   }
 
+  @UseGuards(AuthGuard('jwt'), RolesGuard)
+  @RequiredRoles(ROLES.PARTNER, ROLES.ADMIN)
+  @TsRestHandler(customProjectContract.updateCustomProject)
+  async updateCustomProject(
+    @GetUser() user: User,
+    @Body(new ValidationPipe({ enableDebugMessages: true, transform: true }))
+    dto: Partial<CustomProject>,
+  ): Promise<ControllerResponse> {
+    return tsRestHandler(
+      customProjectContract.updateCustomProject,
+      async ({ params: { id } }) => {
+        if (
+          !(await this.customProjects.areProjectsCreatedByUser(user.id, [id]))
+        ) {
+          return {
+            status: 401,
+            body: null,
+          };
+        }
+
+        const updatedEntity = await this.customProjects.update(id, dto);
+        return {
+          status: 200,
+          body: updatedEntity,
+        };
+      },
+    );
+  }
+
   @UseGuards(AuthGuard('jwt'), RolesGuard)
   @RequiredRoles(ROLES.PARTNER, ROLES.ADMIN)
   @TsRestHandler(customProjectContract.deleteCustomProjects)
@@ -156,7 +186,10 @@ export class CustomProjectsController {
       customProjectContract.deleteCustomProjects,
       async () => {
         if (
-          !(await this.customProjects.canUserDeleteProjects(user.id, body.ids))
+          !(await this.customProjects.areProjectsCreatedByUser(
+            user.id,
+            body.ids,
+          ))
         ) {
           return {
             status: 401,
diff --git a/api/src/modules/custom-projects/custom-projects.service.ts b/api/src/modules/custom-projects/custom-projects.service.ts
index 49908f05..48ca5d09 100644
--- a/api/src/modules/custom-projects/custom-projects.service.ts
+++ b/api/src/modules/custom-projects/custom-projects.service.ts
@@ -145,7 +145,7 @@ export class CustomProjectsService extends AppBaseService<
     return query;
   }
 
-  async canUserDeleteProjects(
+  async areProjectsCreatedByUser(
     userId: string,
     projectIds: string[],
   ): Promise<boolean> {
diff --git a/api/test/integration/custom-projects/custom-projects-update.spec.ts b/api/test/integration/custom-projects/custom-projects-update.spec.ts
new file mode 100644
index 00000000..ed5aaf79
--- /dev/null
+++ b/api/test/integration/custom-projects/custom-projects-update.spec.ts
@@ -0,0 +1,89 @@
+import { TestManager } from '../../utils/test-manager';
+import { customProjectContract } from '@shared/contracts/custom-projects.contract';
+import { User } from '@shared/entities/users/user.entity';
+
+describe('Update custom projects', () => {
+  let testManager: TestManager;
+  let jwtToken: string;
+  let user: User;
+
+  beforeAll(async () => {
+    testManager = await TestManager.createTestManager();
+  });
+
+  beforeEach(async () => {
+    ({ jwtToken, user } = await testManager.setUpTestUser());
+    await testManager.ingestCountries();
+    await testManager.ingestExcel(jwtToken);
+  });
+
+  afterEach(async () => {
+    await testManager.clearDatabase();
+  });
+
+  afterAll(async () => {
+    await testManager.close();
+  });
+
+  describe('Update Custom Projects', () => {
+    test('An authenticated user should be able to update/edit one of their custom projects by id', async () => {
+      // Given
+      const customProject = await testManager.mocks().createCustomProject({
+        user: { id: user.id } as User,
+        projectName: 'A',
+      });
+
+      // When
+      const response = await testManager
+        .request()
+        .patch(
+          `${customProjectContract.updateCustomProject.path.replace(':id', customProject.id)}`,
+        )
+        .set('Authorization', `Bearer ${jwtToken}`)
+        .send({
+          projectName: 'B',
+        });
+
+      // Then
+      expect(response.status).toBe(200);
+      expect(response.body.projectName).toBe('B');
+    });
+
+    test('An authenticated user should not be able to update projects that do not belong to them', async () => {
+      // Given a custom project exists
+      const customProject = await testManager.mocks().createCustomProject();
+
+      // When updating the custom project
+      const response = await testManager
+        .request()
+        .patch(
+          `${customProjectContract.updateCustomProject.path.replace(':id', customProject.id)}`,
+        )
+        .set('Authorization', `Bearer ${jwtToken}`)
+        .send({
+          projectName: 'B',
+        });
+
+      // Then
+      expect(response.status).toBe(401);
+    });
+
+    test('An unauthenticated user should not be able to update a custom project', async () => {
+      // Given a custom project exists
+      const customProject = await testManager.mocks().createCustomProject();
+
+      // When updating the custom project
+      const response = await testManager
+        .request()
+        .patch(
+          `${customProjectContract.updateCustomProject.path.replace(':id', customProject.id)}`,
+        )
+        .send({
+          projectName: 'B',
+        });
+
+      // Then
+      expect(response.status).toBe(401);
+    });
+  });
+});
diff --git a/shared/contracts/custom-projects.contract.ts b/shared/contracts/custom-projects.contract.ts
index 60a1c66d..211868c0 100644
--- a/shared/contracts/custom-projects.contract.ts
+++ b/shared/contracts/custom-projects.contract.ts
@@ -72,6 +72,18 @@ export const customProjectContract = contract.router({
     },
     body: CreateCustomProjectSchema,
   },
+  updateCustomProject: {
+    method: "PATCH",
+    path: "/custom-projects/:id",
+    pathParams: z.object({
+      id: z.coerce.string(),
+    }),
+    responses: {
+      201: contract.type<CustomProject>(),
+    },
+    body: contract.type<Partial<CustomProject>>(),
+    summary: "Update an existing custom-project",
+  },
   getCustomProjects: {
     method: "GET",
     path: "/custom-projects",