diff --git a/requirements.txt b/requirements.txt
index a3869f1..ba4ee99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ pdfrw==0.4
 pkg-resources==0.0.0
 pyasn1==0.4.2
 pyasn1-modules==0.2.1
-rsa==3.4.2
+rsa==4.7
 six==1.11.0
 uritemplate==3.0.0
 urllib3==1.22