diff --git a/lib/core/services/oauth2.service.ts b/lib/core/services/oauth2.service.ts
index 814f68bd1a..668b6b0343 100644
--- a/lib/core/services/oauth2.service.ts
+++ b/lib/core/services/oauth2.service.ts
@@ -71,7 +71,7 @@ export class OAuth2Service {
     post<T>(opts: OAuth2RequestParams): Observable<T> {
         return this.request({
             ...opts,
-            httpMethod: 'PUT'
+            httpMethod: 'POST'
         });
     }