diff --git a/.github/workflows/l1-contracts-ci.yaml b/.github/workflows/l1-contracts-ci.yaml
index dca0572c9..658f26d55 100644
--- a/.github/workflows/l1-contracts-ci.yaml
+++ b/.github/workflows/l1-contracts-ci.yaml
@@ -22,6 +22,9 @@ jobs:
           node-version: 18.18.0
           cache: yarn
 
+      - name: Use Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+
       - name: Install dependencies
         run: yarn