diff --git a/umap/fields.py b/umap/fields.py
index f60a62fa..064bd2f3 100644
--- a/umap/fields.py
+++ b/umap/fields.py
@@ -17,7 +17,7 @@ class DictField(models.TextField):
             value = json.dumps(value)
         return value
 
-    def from_db_value(self, value, expression, connection, context):
+    def from_db_value(self, value, expression, connection):
         return self.to_python(value)
 
     def to_python(self, value):