diff --git a/src/trackbert/notifiers/matrix.py b/src/trackbert/notifiers/matrix.py
index 43b2857..cbd31de 100644
--- a/src/trackbert/notifiers/matrix.py
+++ b/src/trackbert/notifiers/matrix.py
@@ -1,8 +1,9 @@
 from typing import Dict, Any
+from urllib.request import Request, urlopen
 
-from urllib.request import urlopen
+import json
 
-from trackbert.classes.notifier import BaseNotifier
+from ..classes.notifier import BaseNotifier
 
 
 class Matrix(BaseNotifier):
@@ -19,6 +20,13 @@ class Matrix(BaseNotifier):
 
         url = f"{homeserver}/_matrix/client/r0/rooms/{room_id}/send/m.room.message?access_token={token}"
 
-        data = {"msgtype": "m.text", "body": f"{title}\n\n{message}"}
+        data = json.dumps(
+            {"msgtype": "m.text", "body": f"{title}\n\n{message}"}
+        ).encode("utf-8")
 
-        urlopen(url, data=data)
+        req = Request(url, data=data, headers={"Content-Type": "application/json"})
+
+        urlopen(req)
+
+
+notifier = Matrix