diff --git a/src/models/actions/update/UpdateRunnerTeam.ts b/src/models/actions/update/UpdateRunnerTeam.ts
index d7e435d..b5cc7a5 100644
--- a/src/models/actions/update/UpdateRunnerTeam.ts
+++ b/src/models/actions/update/UpdateRunnerTeam.ts
@@ -1,6 +1,6 @@
-import { IsInt, IsNotEmpty, IsObject } from 'class-validator';
+import { IsInt, IsPositive } from 'class-validator';
 import { getConnectionManager } from 'typeorm';
-import { RunnerOrganisationNotFoundError, RunnerOrganisationWrongTypeError } from '../../../errors/RunnerOrganisationErrors';
+import { RunnerOrganisationNotFoundError } from '../../../errors/RunnerOrganisationErrors';
 import { RunnerTeamNeedsParentError } from '../../../errors/RunnerTeamErrors';
 import { RunnerOrganisation } from '../../entities/RunnerOrganisation';
 import { RunnerTeam } from '../../entities/RunnerTeam';
@@ -19,12 +19,11 @@ export class UpdateRunnerTeam extends CreateRunnerGroup {
     id: number;
 
     /**
-     * The updated team's parentGroup.
-     * Just has to contain the organisation's id - everything else won't be checked or changed.
+     * The updated team's parentGroup's id.
      */
-    @IsObject()
-    @IsNotEmpty()
-    parentGroup: RunnerOrganisation;
+    @IsInt()
+    @IsPositive()
+    parentGroup: number;
 
     /**
      * Loads the updated teams's parentGroup based on it's id.
@@ -33,13 +32,9 @@ export class UpdateRunnerTeam extends CreateRunnerGroup {
         if (this.parentGroup === undefined || this.parentGroup === null) {
             throw new RunnerTeamNeedsParentError();
         }
-        if (!isNaN(this.parentGroup.id)) {
-            let parentGroup = await getConnectionManager().get().getRepository(RunnerOrganisation).findOne({ id: this.parentGroup.id });
-            if (!parentGroup) { throw new RunnerOrganisationNotFoundError();; }
-            return parentGroup;
-        }
-
-        throw new RunnerOrganisationWrongTypeError;
+        let parentGroup = await getConnectionManager().get().getRepository(RunnerOrganisation).findOne({ id: this.parentGroup });
+        if (!parentGroup) { throw new RunnerOrganisationNotFoundError();; }
+        return parentGroup;
     }
 
     /**