diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 59230d6..cbbd64f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -73,7 +73,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Rust (MSRV)
-        uses: dtolnay/rust-toolchain@1.89
+        uses: dtolnay/rust-toolchain@1.100
 
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2