diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cf9ac58..dd2b256 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -69,7 +69,7 @@ jobs:
         include:
           - os: macos-latest
             target: aarch64-apple-darwin
-            toolchain: stable
+            toolchain: 1.73.0
           - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
             toolchain: 1.73.0