diff --git a/requirement.txt b/requirement.txt
index 33a3702..aaa1d50 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -22,7 +22,7 @@ pycodestyle==2.4.0
 pyparsing==2.2.0
 redis==2.10.6
 requests==2.19.1
-rsa==3.4.2
+rsa==4.7
 six==1.11.0
 SQLAlchemy==1.2.11
 urllib3==1.23