diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index db8756bf4c704e9c327280fc27abf4026a433580..a9cd5df661af38ca96b0e65b49889db1931b2bc8 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -6,6 +6,14 @@ All notable changes to this project will be documented in this file.
 The format is based on `Keep a Changelog`_,
 and this project adheres to `Semantic Versioning`_.
 
+`2.0rc2`_ - 2021-06-26
+----------------------
+
+Fixed
+~~~~~
+
+* Migration for uniqueness per site was broken due to wrong syntax.
+
 `2.0rc1`_ - 2021-06-23
 ----------------------
 
@@ -66,3 +74,4 @@ Added
 .. _2.0b0: https://edugit.org/AlekSIS/Official/AlekSIS-App-Hjelp/-/tags/2.0b0
 .. _2.0b1: https://edugit.org/AlekSIS/Official/AlekSIS-App-Hjelp/-/tags/2.0b1
 .. _2.0rc1: https://edugit.org/AlekSIS/Official/AlekSIS-App-Hjelp/-/tags/2.0rc1
+.. _2.0rc2: https://edugit.org/AlekSIS/Official/AlekSIS-App-Hjelp/-/tags/2.0rc2
diff --git a/aleksis/apps/hjelp/migrations/0004_unique_constraints.py b/aleksis/apps/hjelp/migrations/0004_unique_constraints.py
index 9d57f65f5941f8fa3222c61c3bf8297729b5f0b9..ea37d99ea482f105ea8224a49760059ee64ebdbf 100644
--- a/aleksis/apps/hjelp/migrations/0004_unique_constraints.py
+++ b/aleksis/apps/hjelp/migrations/0004_unique_constraints.py
@@ -44,7 +44,7 @@ class Migration(migrations.Migration):
         ),
         migrations.AddConstraint(
             model_name='issuecategory',
-            constraint=models.UniqueConstraint(fields=('site_id', 'name'), condition=models.Q(parent='null'), name='unique_category_name_per_site_without_parent'),
+            constraint=models.UniqueConstraint(fields=('site_id', 'name'), condition=models.Q(parent=None), name='unique_category_name_per_site_without_parent'),
         ),
         migrations.AddConstraint(
             model_name='issuecategory',
diff --git a/aleksis/apps/hjelp/models.py b/aleksis/apps/hjelp/models.py
index c7c3f778cb5de433ca4c895b457bd2ef19cdef78..cac958766d5314f5493b1a8645e368a0cdbe8a1d 100644
--- a/aleksis/apps/hjelp/models.py
+++ b/aleksis/apps/hjelp/models.py
@@ -103,7 +103,7 @@ class IssueCategory(ExtensibleModel):
         constraints = [
             models.UniqueConstraint(
                 fields=["site_id", "name"],
-                condition=models.Q(parent="null"),
+                condition=models.Q(parent=None),
                 name="unique_category_name_per_site_without_parent",
             ),
             models.UniqueConstraint(
diff --git a/pyproject.toml b/pyproject.toml
index ae40841b5aab90bc841a34a64d965faf330a8ea8..36e3279e5df5705eb88423fb441e120a6ef63a9d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "AlekSIS-App-Hjelp"
-version = "2.0rc1"
+version = "2.0rc2"
 packages = [
     { include = "aleksis" }
 ]