diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7fde516..da4d0cc 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -52,11 +52,11 @@ jobs:
     steps:
     - uses: actions/checkout@master
 
-    - name: Install stable toolchain
+    - name: Install nightly toolchain
       uses: actions-rs/toolchain@v1
       with:
         profile: minimal
-        toolchain: stable
+        toolchain: nightly
         override: true
         components: rustfmt