diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 137cf58..0c371b5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.85.1
+      - uses: dtolnay/rust-toolchain@1.100.0
         with:
           components: rustfmt, clippy
       - uses: Swatinem/rust-cache@v2
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.85.1
+      - uses: dtolnay/rust-toolchain@1.100.0
       - uses: taiki-e/install-action@v2
         with:
           tool: cargo-audit,cargo-deny