diff --git a/taiga/auth/services.py b/taiga/auth/services.py
index 348e41d4..26f3d0db 100644
--- a/taiga/auth/services.py
+++ b/taiga/auth/services.py
@@ -66,7 +66,7 @@ def is_user_already_registered(*, username:str, email:str, github_id:int=None) -
         return (True, _("Email is already in use."))
 
     if github_id and user_model.objects.filter(github_id=github_id):
-        return (True, _("Github id is already in use"))
+        return (True, _("GitHub id is already in use"))
 
     return (False, None)
 
diff --git a/taiga/github_hook/api.py b/taiga/github_hook/api.py
index f5bfd4e2..23c4a65a 100644
--- a/taiga/github_hook/api.py
+++ b/taiga/github_hook/api.py
@@ -14,26 +14,19 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import json
-import hmac
-import hashlib
-
-from rest_framework.exceptions import ParseError
 from rest_framework.response import Response
-from rest_framework.exceptions import APIException
-
-from django.views.decorators.csrf import csrf_exempt
 from django.utils.translation import ugettext_lazy as _
 
 from taiga.base.api.viewsets import GenericViewSet
+from taiga.base import exceptions as exc
+from taiga.base.utils import json
 from taiga.projects.models import Project
 
 from . import event_hooks
 from .exceptions import ActionSyntaxException
 
-
-class Http400(APIException):
-    status_code = 400
+import hmac
+import hashlib
 
 
 class GitHubViewSet(GenericViewSet):
@@ -79,17 +72,17 @@ class GitHubViewSet(GenericViewSet):
     def create(self, request, *args, **kwargs):
         project = self._get_project(request)
         if not project:
-            raise Http400(_("The project doesn't exist"))
+            raise exc.BadRequest(_("The project doesn't exist"))
 
         if not self._validate_signature(project, request):
-            raise Http400(_("Bad signature"))
+            raise exc.BadRequest(_("Bad signature"))
 
         event_name = request.META.get("HTTP_X_GITHUB_EVENT", None)
 
         try:
             payload = json.loads(request.body.decode("utf-8"))
-        except ValueError as e:
-            raise Http400(_("The payload is not a valid json"))
+        except ValueError:
+            raise exc.BadRequest(_("The payload is not a valid json"))
 
         event_hook_class = self.event_hook_classes.get(event_name, None)
         if event_hook_class is not None:
@@ -97,6 +90,6 @@ class GitHubViewSet(GenericViewSet):
             try:
                 event_hook.process_event()
             except ActionSyntaxException as e:
-                raise Http400(e)
+                raise exc.BadRequest(e)
 
         return Response({})
diff --git a/taiga/github_hook/event_hooks.py b/taiga/github_hook/event_hooks.py
index b4150da4..7f60d7c2 100644
--- a/taiga/github_hook/event_hooks.py
+++ b/taiga/github_hook/event_hooks.py
@@ -14,8 +14,6 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import re
-
 from django.utils.translation import ugettext_lazy as _
 
 from taiga.projects.models import Project, IssueStatus, TaskStatus, UserStoryStatus
@@ -29,8 +27,10 @@ from taiga.projects.notifications.services import send_notifications
 from .exceptions import ActionSyntaxException
 from .services import get_github_user
 
-class BaseEventHook(object):
+import re
 
+
+class BaseEventHook:
     def __init__(self, project, payload):
         self.project = project
         self.payload = payload
@@ -40,7 +40,6 @@ class BaseEventHook(object):
 
 
 class PushEventHook(BaseEventHook):
-
     def process_event(self):
         if self.payload is None:
             return
@@ -93,12 +92,14 @@ class PushEventHook(BaseEventHook):
         element.status = status
         element.save()
 
-        snapshot = take_snapshot(element, comment="Status changed from Github commit", user=get_github_user(github_user))
+        snapshot = take_snapshot(element,
+                                 comment="Status changed from GitHub commit",
+                                 user=get_github_user(github_user))
         send_notifications(element, history=snapshot)
 
 
 def replace_github_references(project_url, wiki_text):
-    template = "\g<1>[Github#\g<2>]({}/issues/\g<2>)\g<3>".format(project_url)
+    template = "\g<1>[GitHub#\g<2>]({}/issues/\g<2>)\g<3>".format(project_url)
     return re.sub(r"(\s|^)#(\d+)(\s|$)", template, wiki_text, 0, re.M)
 
 
@@ -129,9 +130,10 @@ class IssuesEventHook(BaseEventHook):
         )
         take_snapshot(issue, user=get_github_user(github_user))
 
-        snapshot = take_snapshot(issue, comment="Created from Github", user=get_github_user(github_user))
+        snapshot = take_snapshot(issue, comment="Created from GitHub", user=get_github_user(github_user))
         send_notifications(issue, history=snapshot)
 
+
 class IssueCommentEventHook(BaseEventHook):
     def process_event(self):
         if self.payload.get('action', None) != "created":
@@ -151,5 +153,7 @@ class IssueCommentEventHook(BaseEventHook):
         uss = UserStory.objects.filter(external_reference=["github", github_reference])
 
         for item in list(issues) + list(tasks) + list(uss):
-            snapshot = take_snapshot(item, comment="From Github:\n\n{}".format(comment_message), user=get_github_user(github_user))
+            snapshot = take_snapshot(item,
+                                     comment="From GitHub:\n\n{}".format(comment_message),
+                                     user=get_github_user(github_user))
             send_notifications(item, history=snapshot)
diff --git a/taiga/github_hook/migrations/0001_initial.py b/taiga/github_hook/migrations/0001_initial.py
index 65f10eaa..fc98953d 100644
--- a/taiga/github_hook/migrations/0001_initial.py
+++ b/taiga/github_hook/migrations/0001_initial.py
@@ -15,7 +15,7 @@ def create_github_system_user(apps, schema_editor):
     user = User.objects.using(db_alias).create(
         username="github-{}".format(random_hash),
         email="github-{}@taiga.io".format(random_hash),
-        full_name="Github",
+        full_name="GitHub",
         is_active=False,
         is_system=True,
         bio="",
diff --git a/taiga/github_hook/models.py b/taiga/github_hook/models.py
index e69de29b..fca83d73 100644
--- a/taiga/github_hook/models.py
+++ b/taiga/github_hook/models.py
@@ -0,0 +1 @@
+# This file is needed to load migrations
diff --git a/taiga/mdrender/extensions/semi_sane_lists.py b/taiga/mdrender/extensions/semi_sane_lists.py
index 7eba07e7..d208e1c4 100644
--- a/taiga/mdrender/extensions/semi_sane_lists.py
+++ b/taiga/mdrender/extensions/semi_sane_lists.py
@@ -21,7 +21,7 @@ class SemiSaneListExtension(markdown.Extension):
     the sane_lists extension, GitHub will mix list types if they're not
     separated by multiple newlines.
 
-    Github also recognizes lists that start in the middle of a paragraph. This
+    GitHub also recognizes lists that start in the middle of a paragraph. This
     is currently not supported by this extension, since the Python parser has a
     deeply-ingrained belief that blocks are always separated by multiple
     newlines.
diff --git a/taiga/routers.py b/taiga/routers.py
index db3e397f..ac8c6da8 100644
--- a/taiga/routers.py
+++ b/taiga/routers.py
@@ -131,7 +131,7 @@ from taiga.projects.notifications.api import NotifyPolicyViewSet
 
 router.register(r"notify-policies", NotifyPolicyViewSet, base_name="notifications")
 
-# Github webhooks
+# GitHub webhooks
 from taiga.github_hook.api import GitHubViewSet
 router.register(r"github-hook", GitHubViewSet, base_name="github-hook")