diff --git a/core/models.py b/core/models.py
index 4670954..6b1e15f 100644
--- a/core/models.py
+++ b/core/models.py
@@ -76,8 +76,8 @@ class Session(models.Model):
 
 class Hook(models.Model):
     user = models.ForeignKey(User, on_delete=models.CASCADE)
-    name = models.CharField(max_length=1024, null=True, blank=True)
-    hook = models.CharField(max_length=255)
+    name = models.CharField(max_length=1024, null=True, blank=True, unique=True)
+    hook = models.CharField(max_length=255, unique=True)
     received = models.IntegerField(default=0)