diff --git a/build/requirements.txt b/build/requirements.txt
index b2cc897..57ed5d9 100644
--- a/build/requirements.txt
+++ b/build/requirements.txt
@@ -43,7 +43,7 @@ pytz==2019.3
 PyWavelets==1.1.1
 requests==2.22.0
 requests-oauthlib==1.3.0
-rsa==4.0
+rsa==4.7
 scikit-image==0.16.2
 scipy==1.4.1
 six==1.14.0