diff --git a/helpers/make-thunderbird b/helpers/make-thunderbird
index 228e8571..cd15d0a5 100644
--- a/helpers/make-thunderbird
+++ b/helpers/make-thunderbird
@@ -20,7 +20,8 @@
 #
 
 VERSION=27
-EXTERNAL='deb-src http://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu $UPSTREAM main'
+#EXTERNAL='deb-src http://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu $UPSTREAM main'
+EXTERNAL='deb-src http://ppa.si-n.cc/mozillateam/ubuntu/ppa/ $UPSTREAM main'
 REPOKEY=AEBDF4819BE21867
 
 . ./config