diff --git a/.github/workflows/flutter-build.yml b/.github/workflows/flutter-build.yml
index 74e0f62f5..82d01ccd3 100644
--- a/.github/workflows/flutter-build.yml
+++ b/.github/workflows/flutter-build.yml
@@ -219,7 +219,7 @@ jobs:
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@v1
         with:
-          toolchain: nightly-${{ matrix.job.target }}
+          toolchain: ${{ env.RUST_VERSION }}-${{ matrix.job.target }}
           targets: ${{ matrix.job.target }}
           components: ""