diff --git a/requirements/edx/base.in b/requirements/edx/base.in
index 10444d67f9..b36dcb9eb5 100644
--- a/requirements/edx/base.in
+++ b/requirements/edx/base.in
@@ -28,7 +28,7 @@ acid-xblock
 analytics-python                    # Used for Segment analytics
 attrs                               # Reduces boilerplate code involving class attributes
 Babel                               # Internationalization utilities, used for date formatting in a few places
-bleach                              # Allowed-list-based HTML sanitizing library that escapes or strips markup and attributes; used for capa and LTI
+bleach[css]                         # Allowed-list-based HTML sanitizing library that escapes or strips markup and attributes; used for capa and LTI
 boto==2.39.0                        # Deprecated version of the AWS SDK; we should stop using this
 boto3==1.4.8                        # Amazon Web Services SDK for Python
 botocore==1.8.17                    # via boto3, s3transfer
@@ -179,4 +179,4 @@ xss-utils                           # https://github.com/edx/edx-platform/pull/2
 enmerkar-underscore                 # Implements a underscore extractor for django-babel.
 xblock-drag-and-drop-v2             # Drag and Drop XBlock
 xblock-google-drive                 # XBlock for google docs and calendar
-openedx-django-wiki 
+openedx-django-wiki