diff --git a/docker/Dockerfile b/docker/Dockerfile
index 3100a8e20..1060824cf 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.5-slim
+FROM python:3.5-slim-jessie
 
 ARG HTTP_PROXY
 ARG HTTPS_PROXY
diff --git a/requirements-app.txt b/requirements-app.txt
index bc8eec9b4..369024bac 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -25,6 +25,6 @@ notifications-python-client==4.8.2
 # PaaS
 awscli-cwlogs>=1.4,<1.5
 
-git+https://github.com/alphagov/notifications-utils.git@29.3.0#egg=notifications-utils==29.3.2
+git+https://github.com/alphagov/notifications-utils.git@29.3.2#egg=notifications-utils==29.3.2
 
 git+https://github.com/alphagov/boto.git@2.43.0-patch3#egg=boto==2.43.0-patch3
diff --git a/requirements.txt b/requirements.txt
index b9c187119..c696af14d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,20 +26,20 @@ notifications-python-client==4.8.2
 # PaaS
 awscli-cwlogs>=1.4,<1.5
 
-git+https://github.com/alphagov/notifications-utils.git@29.3.0#egg=notifications-utils==29.3.0
+git+https://github.com/alphagov/notifications-utils.git@29.3.2#egg=notifications-utils==29.3.2
 
 git+https://github.com/alphagov/boto.git@2.43.0-patch3#egg=boto==2.43.0-patch3
 
 ## The following requirements were added by pip freeze:
-alembic==0.9.10
+alembic==1.0.0
 amqp==1.4.9
 anyjson==0.3.3
-awscli==1.15.55
+awscli==1.15.59
 bcrypt==3.1.4
 billiard==3.3.0.23
 bleach==2.1.3
 boto3==1.6.16
-botocore==1.10.54
+botocore==1.10.58
 certifi==2018.4.16
 chardet==3.0.4
 click==6.7