diff --git a/.github/workflows/update-rust-toolchain.yml b/.github/workflows/update-rust-toolchain.yml
index c11aa6b3c6..aa6dfb655e 100644
--- a/.github/workflows/update-rust-toolchain.yml
+++ b/.github/workflows/update-rust-toolchain.yml
@@ -17,6 +17,7 @@ jobs:
         uses: a-kenji/update-rust-toolchain@v1
         with:
           minor-version-delta: 2
+          toolchain-path: './rust-toolchain.toml'
           token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}
           pr-labels: |
             dependencies