diff --git a/.github/workflows/sync-clarity-reference.yml b/.github/workflows/sync-clarity-reference.yml
index 4c23284711..d0a3834d34 100644
--- a/.github/workflows/sync-clarity-reference.yml
+++ b/.github/workflows/sync-clarity-reference.yml
@@ -36,7 +36,7 @@ jobs:
           path: stacks-core
 
       - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+        uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with:
           toolchain: stable