diff --git a/requirements.txt b/requirements.txt
index 7809127..402d825 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,6 @@ paho-mqtt==1.3.0
 pyasn1==0.3.2
 pyasn1-modules==0.0.11
 requests==2.18.3
-rsa==3.4.2
+rsa==4.7
 six==1.10.0
 urllib3==1.22