diff --git a/pkg/windows/req_base.txt b/pkg/windows/req_base.txt
index b6f88c9b22..5bfafd6e92 100644
--- a/pkg/windows/req_base.txt
+++ b/pkg/windows/req_base.txt
@@ -12,6 +12,7 @@ idna==2.5
 ioloop==0.1a0
 ipaddress==1.0.18
 Jinja2==2.9.6
+libnacl==1.6.1
 Mako==1.0.6
 MarkupSafe==1.0
 msgpack-python==0.4.8