diff --git a/libforget/img_proxy.py b/libforget/img_proxy.py
index b34a11b..ca93bf0 100644
--- a/libforget/img_proxy.py
+++ b/libforget/img_proxy.py
@@ -65,7 +65,7 @@ class ImgProxyCache(object):
         if(resp.status_code != 200):
             return
 
-        header_whitelist = [
+        allowed_headers = [
                 'content-type',
                 'cache-control',
                 'etag',
@@ -81,7 +81,7 @@ class ImgProxyCache(object):
                 if match:
                     expire = max(self.expire, int(match.group(1)))
 
-        for key in header_whitelist:
+        for key in allowed_headers:
             if key in resp.headers:
                 headers[key] = resp.headers[key]
         self.redis.set(self.key('headers', url), pickle.dumps(headers, -1),
diff --git a/libforget/mastodon.py b/libforget/mastodon.py
index 8cdf507..c38edb1 100644
--- a/libforget/mastodon.py
+++ b/libforget/mastodon.py
@@ -195,11 +195,11 @@ def delete(post):
         raise TemporaryError(e)
 
 
-def suggested_instances(limit=5, min_popularity=5, blacklist=tuple()):
+def suggested_instances(limit=5, min_popularity=5, blocklist=tuple()):
     return tuple((ins.instance for ins in (
             MastodonInstance.query
             .filter(MastodonInstance.popularity > min_popularity)
-            .filter(~MastodonInstance.instance.in_(blacklist))
+            .filter(~MastodonInstance.instance.in_(blocklist))
             .order_by(db.desc(MastodonInstance.popularity),
                       MastodonInstance.instance)
             .limit(limit).all())))