diff --git a/avatar/templatetags/avatar_tags.py b/avatar/templatetags/avatar_tags.py
index 59b4b8b..2c7e392 100644
--- a/avatar/templatetags/avatar_tags.py
+++ b/avatar/templatetags/avatar_tags.py
@@ -94,7 +94,7 @@ def primary_avatar(user, width=settings.AVATAR_DEFAULT_SIZE, height=None):
     else:
         kwargs["height"] = height
 
-    url = reverse("avatar_render_primary", kwargs=kwargs)
+    url = reverse("avatar:render_primary", kwargs=kwargs)
     return """<img src="%s" width="%s" height="%s" alt="%s" />""" % (
         url,
         width,
diff --git a/avatar/urls.py b/avatar/urls.py
index 9a043f8..12f7472 100644
--- a/avatar/urls.py
+++ b/avatar/urls.py
@@ -1,19 +1,24 @@
-from django.urls import re_path
+from django.urls import path
 
 from avatar import views
 
+# For reversing namespaced urls
+# https://docs.djangoproject.com/en/4.1/topics/http/urls/#reversing-namespaced-urls
+app_name = "avatar"
+
 urlpatterns = [
-    re_path(r"^add/$", views.add, name="avatar_add"),
-    re_path(r"^change/$", views.change, name="avatar_change"),
-    re_path(r"^delete/$", views.delete, name="avatar_delete"),
-    re_path(
-        r"^render_primary/(?P<user>[\w\d\@\.\-_]+)/(?P<width>[\d]+)/$",
+    path("add/", views.add, name="add"),
+    path("change/", views.change, name="change"),
+    path("delete/", views.delete, name="delete"),
+    # https://docs.djangoproject.com/en/4.1/topics/http/urls/#path-converters
+    path(
+        "render_primary/<slug:user>/<int:width>/",
         views.render_primary,
-        name="avatar_render_primary",
+        name="render_primary",
     ),
-    re_path(
-        r"^render_primary/(?P<user>[\w\d\@\.\-_]+)/(?P<width>[\d]+)/(?P<height>[\d]+)/$",
+    path(
+        "render_primary/<slug:user>/<int:width>/<int:height>/",
         views.render_primary,
-        name="avatar_render_primary",
+        name="render_primary",
     ),
 ]
diff --git a/tests/tests.py b/tests/tests.py
index 79d6874..742e816 100644
--- a/tests/tests.py
+++ b/tests/tests.py
@@ -43,7 +43,7 @@ class AssertSignal:
 def upload_helper(o, filename):
     f = open(os.path.join(o.testdatapath, filename), "rb")
     response = o.client.post(
-        reverse("avatar_add"),
+        reverse("avatar:add"),
         {
             "avatar": f,
         },
@@ -165,7 +165,7 @@ class AvatarTests(TestCase):
     def test_default_url(self):
         response = self.client.get(
             reverse(
-                "avatar_render_primary",
+                "avatar:render_primary",
                 kwargs={
                     "user": self.user.username,
                     "width": 80,
@@ -196,7 +196,7 @@ class AvatarTests(TestCase):
         receiver = AssertSignal()
         avatar_deleted.connect(receiver)
         response = self.client.post(
-            reverse("avatar_delete"),
+            reverse("avatar:delete"),
             {
                 "choices": [avatar[0].id],
             },
@@ -216,7 +216,7 @@ class AvatarTests(TestCase):
         primary = get_primary_avatar(self.user)
         oid = primary.id
         self.client.post(
-            reverse("avatar_delete"),
+            reverse("avatar:delete"),
             {
                 "choices": [oid],
             },
@@ -229,7 +229,7 @@ class AvatarTests(TestCase):
 
     def test_change_avatar_get(self):
         self.test_normal_image_upload()
-        response = self.client.get(reverse("avatar_change"))
+        response = self.client.get(reverse("avatar:change"))
 
         self.assertEqual(response.status_code, 200)
         self.assertIsNotNone(response.context["avatar"])
@@ -239,7 +239,7 @@ class AvatarTests(TestCase):
         old_primary = Avatar.objects.get(user=self.user, primary=True)
         choice = Avatar.objects.filter(user=self.user, primary=False)[0]
         response = self.client.post(
-            reverse("avatar_change"),
+            reverse("avatar:change"),
             {
                 "choice": choice.pk,
             },