diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a82544d..6801342 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -69,6 +69,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
       - name: cargo build
         uses: actions-rs/cargo@v1
         with: