diff --git a/requirements.txt b/requirements.txt
index 90c5b9f16..c1eb2ab05 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ pyexcel-io==0.5.20
 pyexcel-xls==0.5.8
 pyexcel-xlsx==0.5.8
 pyexcel-ods3==0.5.3
-pytz==2019.3
+pytz==2020.1
 gunicorn==20.0.4
 eventlet==0.25.2
 notifications-python-client==5.5.1
@@ -29,10 +29,10 @@ git+https://github.com/alphagov/notifications-utils.git@39.0.0#egg=notifications
 git+https://github.com/alphagov/govuk-frontend-jinja.git@v0.5.1-alpha#egg=govuk-frontend-jinja==0.5.1-alpha
 
 ## The following requirements were added by pip freeze:
-awscli==1.18.51
+awscli==1.18.53
 bleach==3.1.4
 boto3==1.10.38
-botocore==1.16.1
+botocore==1.16.3
 certifi==2020.4.5.1
 chardet==3.0.4
 click==7.1.2