diff --git a/requirements/common.in b/requirements/common.in
index 3454d9e300..d3aad11eb6 100644
--- a/requirements/common.in
+++ b/requirements/common.in
@@ -111,7 +111,7 @@ pylibmc==1.5.2
 python-dateutil==2.6.1
 
 # Needed for timezone work
-pytz==2017.2
+pytz==2018.3
 
 # Needed for redis
 redis==2.10.6
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 8c37ace517..5ab857e5be 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -127,7 +127,7 @@ python-digitalocean==1.12
 python-gcm==0.4
 python-twitter==3.3
 python3-openid==3.1.0     # via social-auth-core
-pytz==2017.2
+pytz==2018.3
 pyyaml==3.12              # via pyaml
 qrcode==4.0.4             # via django-two-factor-auth
 queuelib==1.4.2           # via scrapy
diff --git a/requirements/prod.txt b/requirements/prod.txt
index 042f034c7f..cc2b82ece7 100644
--- a/requirements/prod.txt
+++ b/requirements/prod.txt
@@ -91,7 +91,7 @@ python-dateutil==2.6.1
 python-gcm==0.4
 python-twitter==3.3
 python3-openid==3.1.0     # via social-auth-core
-pytz==2017.2
+pytz==2018.3
 qrcode==4.0.4             # via django-two-factor-auth
 redis==2.10.6
 regex==2017.11.9