diff --git a/taiga/users/fixtures/initial_user.json b/taiga/users/fixtures/initial_user.json
index 742bd025..ba098629 100644
--- a/taiga/users/fixtures/initial_user.json
+++ b/taiga/users/fixtures/initial_user.json
@@ -1,6 +1,5 @@
 [
     {
-        "pk": 1,
         "model": "users.user",
         "fields": {
             "username": "admin",