diff --git a/README.md b/README.md
index 6dad4178..f70dd2ad 100644
--- a/README.md
+++ b/README.md
@@ -73,8 +73,8 @@ Since the project is still in its early stages, the features are growing every d
 Web backend
 - [Django](https://www.djangoproject.com/) web server
 - [PostgreSQL](https://www.postgresql.org/) database
-- [ActivityPub](http://activitypub.rocks/) federation
-- [Celery](http://celeryproject.org/) task queuing
+- [ActivityPub](https://activitypub.rocks/) federation
+- [Celery](https://docs.celeryproject.org/) task queuing
 - [Redis](https://redis.io/) task backend
 - [Redis (again)](https://redis.io/) activity stream manager
 
diff --git a/bookwyrm/settings.py b/bookwyrm/settings.py
index 146d4fff..73159c71 100644
--- a/bookwyrm/settings.py
+++ b/bookwyrm/settings.py
@@ -166,7 +166,7 @@ USE_TZ = True
 
 
 # Static files (CSS, JavaScript, Images)
-# https://docs.djangoproject.com/en/2.0/howto/static-files/
+# https://docs.djangoproject.com/en/3.1/howto/static-files/
 
 PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
 STATIC_URL = "/static/"
diff --git a/celerywyrm/settings.py b/celerywyrm/settings.py
index 952fe5b1..cd5b00ba 100644
--- a/celerywyrm/settings.py
+++ b/celerywyrm/settings.py
@@ -149,7 +149,7 @@ USE_TZ = True
 
 
 # Static files (CSS, JavaScript, Images)
-# https://docs.djangoproject.com/en/3.0/howto/static-files/
+# https://docs.djangoproject.com/en/3.1/howto/static-files/
 
 STATIC_URL = "/static/"
 STATIC_ROOT = os.path.join(BASE_DIR, env("STATIC_ROOT", "static"))