diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 9a84a8f..d4a14cf 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -28,8 +28,12 @@ jobs:
             ${{ github.job }}-${{ runner.os }}-${{ hashFiles('rust-toolchain') }}-${{ hashFiles('Cargo.lock') }}
             ${{ github.job }}-${{ runner.os }}-${{ hashFiles('rust-toolchain') }}-
 
-      - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@stable
+      - name: Install Rust
+        shell: bash
+        run: |
+          installer=$(mktemp -d)/install-rustup
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs > $installer
+          bash $installer --default-toolchain $(cat rust-toolchain) -y
 
       - name: Install just
         uses: taiki-e/install-action@just