diff --git a/tox.ini b/tox.ini
index 49533fdd0..b891c954d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -291,3 +291,6 @@ passenv =
     AWS_*
     encrypted_*
 setenv = AWS_DEFAULT_REGION=us-east-1
+whitelist_externals =
+    openssl
+    sleep