diff --git a/requirements.txt b/requirements.txt
index 5ccd486..dc22ac2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ pycparser==2.19
 pyparsing==2.4.0
 python-dateutil==2.8.0
 requests==2.22.0
-rsa==4.0
+rsa==4.7
 six==1.12.0
 slackclient==2.0.0
 Unidecode==1.1.1