diff --git a/spk/octoprint/src/requirements.txt b/spk/octoprint/src/requirements.txt
index c71d3230..9b433250 100644
--- a/spk/octoprint/src/requirements.txt
+++ b/spk/octoprint/src/requirements.txt
@@ -23,7 +23,7 @@ pyserial==2.7
 pytz==2015.6
 regex==2016.03.02
 requests==2.7.0
-rsa==3.2
+rsa==4.7
 sarge==0.1.4
 semantic-version==2.4.2
 sockjs-tornado==1.0.1