Update some prod requirements.

requirements.txt

 # Monitor dependencies
-scout-apm==2.5.0
-sentry-sdk==0.13.1
+scout-apm==2.10.0
+sentry-sdk==0.14.1
 
 # Production dependencies
 boto3==1.9.245
 celery==4.3.0
 dj-database-url==0.5.0
 django-anymail==6.0.1
-django-basic-auth-ip-whitelist==0.2.1
-django-bleach==0.5.3
+django-basic-auth-ip-whitelist==0.3.1
+django-bleach==0.6.1
 django-countries==5.5
 django-extensions==2.1.7
 django-filter==2.1.0
@@ -17,7 +17,7 @@ django-heroku==0.3.1
 django-hijack==2.1.10
 django-pagedown==1.0.6
 django-pwned-passwords==4.1.0
-django-redis==4.10.0
+django-redis==4.11.0
 django-referrer-policy==1.0
 django-storages==1.7.1
 django-tables2==1.21.2
@@ -28,8 +28,8 @@ django_select2==7.1.1
 djangorestframework==3.9.2
 djangorestframework-api-key==1.3.0
 django==2.2.10
-gunicorn==19.9.0
-mailchimp3==3.0.9
+gunicorn==20.0.4
+mailchimp3==3.0.12
 mistune==0.8.4
 more-itertools==7.2.0
 Pillow==5.4.1
@@ -38,5 +38,5 @@ reportlab==3.5.31
 social_auth_app_django==3.1.0
 tomd==0.1.3
 wagtail==2.7.1
-wagtail-cache==0.5.2
-whitenoise==4.1.4
+wagtail-cache==1.0.0
+whitenoise==5.0.1