diff --git a/authentik/blueprints/v1/tasks.py b/authentik/blueprints/v1/tasks.py
index ccfdcc221..9cc4ab0da 100644
--- a/authentik/blueprints/v1/tasks.py
+++ b/authentik/blueprints/v1/tasks.py
@@ -125,7 +125,7 @@ def check_blueprint_v1_file(blueprint: BlueprintFile):
         )
         instance.save()
     if instance.last_applied_hash != blueprint.hash:
-        apply_blueprint.delay(instance.pk.hex)
+        apply_blueprint.delay(str(instance.pk))
 
 
 @CELERY_APP.task(