diff --git a/lib/cloud_controller/diego/ssh_key.rb b/lib/cloud_controller/diego/ssh_key.rb
index e85af60670..991b80f337 100644
--- a/lib/cloud_controller/diego/ssh_key.rb
+++ b/lib/cloud_controller/diego/ssh_key.rb
@@ -8,7 +8,7 @@ module VCAP
   module CloudController
     module Diego
       class SSHKey
-        def initialize(bits=2048)
+        def initialize(bits=4096)
           @bits = bits
         end