diff --git a/lambdas/start-transcription/requirements.txt b/lambdas/start-transcription/requirements.txt
index 38747e9..9684aeb 100644
--- a/lambdas/start-transcription/requirements.txt
+++ b/lambdas/start-transcription/requirements.txt
@@ -9,4 +9,4 @@ python-dateutil==2.7.3
 requests==2.19.1
 s3transfer==0.1.13
 six==1.11.0
-urllib3==1.23
+urllib3==1.24.2