diff --git a/cloud-custodian/tools/sandbox/c7n_sphere11/requirements.txt b/cloud-custodian/tools/sandbox/c7n_sphere11/requirements.txt
index b89a975..d3d5f46 100644
--- a/cloud-custodian/tools/sandbox/c7n_sphere11/requirements.txt
+++ b/cloud-custodian/tools/sandbox/c7n_sphere11/requirements.txt
@@ -10,7 +10,7 @@ pyasn1>=0.4.2
 python-dateutil>=2.6.1
 PyYAML>=4.2b4
 requests>=2.12.5
-rsa==4.0
+rsa==4.7
 s3transfer>=0.1.10
 six>=1.10.0
 c7n>=0.8.22.0