diff --git a/pretalx_webhook/__init__.py b/pretalx_webhook/__init__.py
index 485f44a..ae73625 100644
--- a/pretalx_webhook/__init__.py
+++ b/pretalx_webhook/__init__.py
@@ -1 +1 @@
-__version__ = "0.1.1"
+__version__ = "0.1.3"
diff --git a/pretalx_webhook/signals.py b/pretalx_webhook/signals.py
index 8a33d58..47a997c 100644
--- a/pretalx_webhook/signals.py
+++ b/pretalx_webhook/signals.py
@@ -42,7 +42,7 @@ def on_schedule_release(sender, schedule, user, **kwargs):
 
         logger.info(f"POST JSON request to {webhook_endpoint} with payload: {payload}")
         response = requests.post(webhook_endpoint,
-            json=json.dumps(payload),
+            json=payload,
             headers=headers,
         )