diff --git a/.drone.yml b/.drone.yml
index 8c1663a..f431761 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -7,8 +7,9 @@ workspace:
 
 steps: 
 - name: code style
-  image: rustlang/rust:nightly-slim
+  image: rust:1.47
   commands:
+  - rustup toolchain install nightly-x86_64-unknown-linux-gnu
   - rustup component add rustfmt --toolchain nightly
   - cargo +nightly fmt --all -- --check
 # - name: code quality