diff --git a/requirements.txt b/requirements.txt
index bec4b86..ef865c1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ python-crfsuite==0.9.6
 python-dateutil==2.8.0
 PyYAML==5.1.2
 requests==2.22.0
-rsa==3.4.2
+rsa==4.7
 s3transfer==0.2.1
 scikit-learn==0.21.3
 scipy==1.3.1