diff --git a/sys/src/requirements.txt b/sys/src/requirements.txt
index 42697f1..fc9983f 100644
--- a/sys/src/requirements.txt
+++ b/sys/src/requirements.txt
@@ -18,7 +18,7 @@ pyasn1==0.4.4
 pyasn1-modules==0.2.2
 requests==2.21.0
 requests-oauthlib==1.0.0
-rsa==4.0
+rsa==4.7
 six==1.12.0
 uritemplate==3.0.0
 urllib3==1.24.1