diff --git a/requirements.txt b/requirements.txt
index 891655c2..ef6c1d4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,14 +1,14 @@
-cffi==1.10.0
-pyftpdlib==1.5.0
+cffi==1.11.2
+pyftpdlib==1.5.3
 pysftp==0.2.9
-wheel==0.29.0
-statsd==3.2.1
-credstash==1.8.0
-Flask==0.10.1
-Flask-Script==2.0.5
-celery==3.1.25
-monotonic==1.2
-boto3==1.4.4
+wheel==0.30.0
+statsd==3.2.2
+credstash==1.14.0
+Flask==0.12.2
+Flask-Script==2.0.6
+celery==4.1.0
+monotonic==1.4
+boto3==1.5.4
 
 git+https://github.com/alphagov/notifications-utils.git@23.3.5#egg=notifications-utils==23.3.5
 
diff --git a/requirements_for_test.txt b/requirements_for_test.txt
index bc365098..ccdfce31 100644
--- a/requirements_for_test.txt
+++ b/requirements_for_test.txt
@@ -1,4 +1,5 @@
 -r requirements.txt
+
 flake8==3.5.0
 pytest==3.3.1
 pytest-mock==1.6.3