diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d520c7a..27ead78 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,7 +30,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: 1.66
+          toolchain: 1.81
           targets: ${{ matrix.config.target }}
       - name: Set up for cross-compiled linux aarch64 build
         if: matrix.config.target == 'aarch64-unknown-linux-gnu'