diff --git a/.si.yml b/.si.yml
index afa2895523..bd2fa4da91 100644
--- a/.si.yml
+++ b/.si.yml
@@ -1,4 +1,5 @@
 before_deploy:
+  - tnpm i tnpm@release-3 -g
   - tnpm install && tnpm update
   - tnpm run site
 options: