diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5649cb2..dd493db 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -42,7 +42,7 @@ test:rustfmt:
   - apt-get install -yqq --no-install-recommends build-essential
   - apt-get install -y libgtk-3-dev
   - export PATH="$PATH:$HOME/.cargo/bin"
-  - which rustfmt || cargo install rustfmt
+  - which rustfmt || cargo install rustfmt-nightly
   script:
   - rustc --version && cargo --version
   - pwd