diff --git a/.build.yml b/.build.yml
index 8bb9b29..e8a682a 100644
--- a/.build.yml
+++ b/.build.yml
@@ -1,6 +1,6 @@
 image: archlinux
 packages:
-  - rust
+  - rust-nightly
   - rsync
 sources:
   - https://git.sr.ht/~mzhang/e0