diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9b3d1c2..d9f3611 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -40,7 +40,7 @@ jobs:
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: nightly
+          toolchain: stable
       - name: Install Ada toolchain
         uses: alire-project/setup-alire@v2
         with: