diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ea32002fa..79a25e1b1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -75,7 +75,7 @@ jobs:
     - uses: actions/checkout@v4
     # Now check that `cargo build` works with respect to the oldest possible
     # deps and the stated MSRV
-    - uses: dtolnay/rust-toolchain@1.65.0
+    - uses: dtolnay/rust-toolchain@1.80.0
     - run: cargo build --all-features
 
   style: