diff --git a/stretch/preferences.d/stretch-backports b/stretch/preferences.d/stretch-backports
index ec13d3b..0c83837 100644
--- a/stretch/preferences.d/stretch-backports
+++ b/stretch/preferences.d/stretch-backports
@@ -2,3 +2,7 @@ Package: certbot
 Pin: release a=stretch-backports
 Pin-Priority: 900
 
+Package: python3-certbot
+Pin: release a=stretch-backports
+Pin-Priority: 900
+