diff --git a/requirements.txt b/requirements.txt
index 1b7d9da..153e524 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -143,7 +143,7 @@ QtPy==1.3.1
 requests==2.18.4
 requests-cache==0.4.10
 rope==0.10.7
-rsa==3.4.2
+rsa==4.7
 ruamel.yaml==0.15.35
 scikit-image==0.13.1
 scikit-learn==0.19.1