diff --git a/mrjob/requirements.txt b/mrjob/requirements.txt
index 0ad4b3c..43b1290 100644
--- a/mrjob/requirements.txt
+++ b/mrjob/requirements.txt
@@ -26,7 +26,7 @@ python-dateutil==2.8.0
 pytz==2019.3
 PyYAML==5.1.2
 requests==2.22.0
-rsa==4.0
+rsa==4.7
 s3transfer==0.2.1
 six==1.13.0
 urllib3==1.25.7