diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 9127cb2..ec69f4a 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions-rs/toolchain@v1
         with:
-            toolchain: stable
+            toolchain: nightly
       - run: rustup component add rustfmt
       - uses: actions-rs/cargo@v1
         with: