diff --git a/.github/workflows/unit-tests-from-fork.yml b/.github/workflows/unit-tests-from-fork.yml
index 1ce5bece..fc4d8b06 100644
--- a/.github/workflows/unit-tests-from-fork.yml
+++ b/.github/workflows/unit-tests-from-fork.yml
@@ -32,6 +32,6 @@ jobs:
       - name: Install Anvil
         uses: foundry-rs/foundry-toolchain@v1
         with:
-          version: nightly
+          version: nightly-cc5637a979050c39b3d06bc4cc6134f0591ee8d0
       - name: Run tests
         run: CARGO_HTTP_MULTIPLEXING=false cargo test --all -- --test-threads=1 --nocapture