diff --git a/.github/workflows/formatting.yml b/.github/workflows/formatting.yml
index 5c3403d..3c5a8a9 100644
--- a/.github/workflows/formatting.yml
+++ b/.github/workflows/formatting.yml
@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Install Foundry
-        uses: foundry-rs/foundry-toolchain@8789b3e21e6c11b2697f5eb56eddae542f746c10 # v1
+        uses: foundry-rs/foundry-toolchain@908c540300062bd5a7e473851cdb4282204cee09 # v1.9.1
 
       - name: Check format
         run: forge fmt --check
diff --git a/.github/workflows/foundry.yml b/.github/workflows/foundry.yml
index 281fd95..40f8f0e 100644
--- a/.github/workflows/foundry.yml
+++ b/.github/workflows/foundry.yml
@@ -17,9 +17,7 @@ jobs:
           submodules: recursive
 
       - name: Install Foundry
-        uses: foundry-rs/foundry-toolchain@8789b3e21e6c11b2697f5eb56eddae542f746c10 # v1
-        with:
-          version: nightly
+        uses: foundry-rs/foundry-toolchain@908c540300062bd5a7e473851cdb4282204cee09 # v1.9.1
 
       - name: Run Forge build
         run: |