diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index f59cd591..b94d0436 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -56,7 +56,7 @@ jobs:
         with:
           toolchain: ${{ matrix.toolchain }}
 
-      - run: cd rust && cargo build
+      - run: rustup default ${{ matrix.toolchain }}
 
       - run: cd rust && cargo test
         if: ${{ matrix.toolchain != 'nightly' }}