diff --git a/v25/storage/dbstorage.py b/v25/storage/dbstorage.py
index cd8f756..47fcf57 100644
--- a/v25/storage/dbstorage.py
+++ b/v25/storage/dbstorage.py
@@ -1,5 +1,5 @@
 import json
-from subprocess import Popen, PIPE
+from subprocess import run
 from sys import stderr
 from threading import Thread
 from time import time, sleep
@@ -342,16 +342,14 @@ class DBStorage(PushStorage):
 
     @staticmethod
     def pushsubscription(subscription: dict):
-        p = Popen(["node", "v25pushx/push.js"], stdin=PIPE, shell=True)
-        p.communicate(json.dumps({
+        assert run(["node", "v25pushx/push.js"], input=json.dumps({
             "subscription": subscription,
             "notification": {
                 "notification": {
                     "title": "New Message (V25PUSH)"
                 }
             }
-        }).encode())
-        assert not p.wait(), "push subprocess failed"
+        })).returncode, "push subprocess failed"
 
     def pushpush(self, subject: Subject):
         session = self.Session()