diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8aa176a..dec7e0b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.70.0
+      - uses: dtolnay/rust-toolchain@1.81.0
       - run: cargo check --release
 
   cross-check: