diff --git a/.github/workflows/affinity-corpus.yml b/.github/workflows/affinity-corpus.yml
index 41ac5a00d..b3e0178f5 100644
--- a/.github/workflows/affinity-corpus.yml
+++ b/.github/workflows/affinity-corpus.yml
@@ -30,7 +30,7 @@ jobs:
           egress-policy: audit
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@686976e191b89faba57d3206551f0f330d8cb249 # stable
+        uses: step-security/dtolnay-rust-toolchain@8dd607977d06adf4ed49b190381e74c17a9dd25f # v1.0.0
         with:
           toolchain: "1.95"
       - name: Fetch pinned and checksum-verified corpus