diff --git a/boards/views.py b/boards/views.py
--- a/boards/views.py
+++ b/boards/views.py
@@ -77,7 +77,7 @@ def index(request, page=0):
                   context)
 
 
-@transaction.commit_on_success
+@transaction.atomic
 def _new_post(request, form, opening_post=None):
     """Add a new post (in thread or as a reply)."""
 
@@ -308,7 +308,7 @@ def authors(request):
     return render(request, 'boards/authors.html', context)
 
 
-@transaction.commit_on_success
+@transaction.atomic
 def delete(request, post_id):
     """Delete post"""
 
@@ -325,7 +325,7 @@ def delete(request, post_id):
         return redirect(thread, post_id=post.thread.id)
 
 
-@transaction.commit_on_success
+@transaction.atomic
 def ban(request, post_id):
     """Ban user"""
 
@@ -359,7 +359,7 @@ def page_404(request):
     return render(request, 'boards/404.html', context)
 
 
-@transaction.commit_on_success
+@transaction.atomic
 def tag_subscribe(request, tag_name):
     """Add tag to favorites"""
 
@@ -372,7 +372,7 @@ def tag_subscribe(request, tag_name):
     return _redirect_to_next(request)
 
 
-@transaction.commit_on_success
+@transaction.atomic
 def tag_unsubscribe(request, tag_name):
     """Remove tag from favorites"""
 
@@ -408,7 +408,7 @@ def api_get_post(request, post_id):
     return HttpResponse(content=json)
 
 
-@transaction.commit_on_success
+@transaction.atomic
 def api_get_threaddiff(request, thread_id, last_update_time):
     """Get posts that were changed or added since time"""
 
@@ -528,7 +528,7 @@ def _redirect_to_next(request):
         return redirect(index)
 
 
-@transaction.commit_on_success
+@transaction.atomic
 def _ban_current_user(request):
     """Add current user to the IP ban list"""
 
diff --git a/dependency_list.txt b/dependency_list.txt
--- a/dependency_list.txt
+++ b/dependency_list.txt
@@ -1,5 +1,5 @@
-pil
-django >= 1.5
+pillow
+django >= 1.6
 django_cleanup
 django-markupfield
 markdown