diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 9d16a66b..b9d69670 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -17,7 +17,7 @@ jobs:
           submodules: recursive
 
       - name: Install Foundry
-        uses: foundry-rs/foundry-toolchain@v1
+        uses: foundry-rs/foundry-toolchain@8f1998e9878d786675189ef566a2e4bf24869773
         with:
           version: nightly
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 280df88b..691ec15f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ jobs:
           submodules: recursive
 
       - name: Install Foundry
-        uses: foundry-rs/foundry-toolchain@v1
+        uses: foundry-rs/foundry-toolchain@8f1998e9878d786675189ef566a2e4bf24869773
         with:
           version: nightly