diff --git a/requirements/common.in b/requirements/common.in
index 993fc44524..e243d39c7c 100644
--- a/requirements/common.in
+++ b/requirements/common.in
@@ -183,7 +183,7 @@ lxml==4.2.1
 
 # Needed for 2-factor authentication
 django-two-factor-auth==1.7.0
-twilio==6.11.0
+twilio==6.13.0
 
 # Needed for processing payments (in zilencer)
 stripe==1.79.1
diff --git a/requirements/dev.txt b/requirements/dev.txt
index ff2cd18fe5..7d6f040976 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -166,7 +166,7 @@ tblib==1.3.2
 tornado==4.5.3
 traitlets==4.3.2          # via ipython
 transifex-client==0.12.5
-twilio==6.11.0
+twilio==6.13.0
 twisted==17.9.0
 typed-ast==1.1.0          # via mypy
 typing==3.6.4
diff --git a/requirements/prod.txt b/requirements/prod.txt
index f70f262101..291a2ebc34 100644
--- a/requirements/prod.txt
+++ b/requirements/prod.txt
@@ -115,7 +115,7 @@ statsd==3.2.1             # via django-statsd-mozilla
 stripe==1.79.1
 tornado==4.5.3
 traitlets==4.3.2          # via ipython
-twilio==6.11.0
+twilio==6.13.0
 typing==3.6.4
 uritemplate==3.0.0
 urllib3==1.22             # via requests