diff --git a/requirements.txt b/requirements.txt
index 903b2f5..50c2613 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -82,7 +82,7 @@ pytz==2014.9
 raven==6.9.0
 redis==2.10.3
 requests==2.18.4
-rsa==3.1.4
+rsa==4.7
 s3transfer==0.2.1
 Shapely==1.4.4
 six==1.8.0