diff --git a/.github/workflows/paymaster.yaml b/.github/workflows/paymaster.yaml
index 2ae426ef..37413fba 100644
--- a/.github/workflows/paymaster.yaml
+++ b/.github/workflows/paymaster.yaml
@@ -26,7 +26,7 @@ jobs:
             - name: Install Foundry
               uses: foundry-rs/foundry-toolchain@8b0419c685ef46cb79ec93fbdc131174afceb730 # 1.6.0
               with:
-                  version: v1.4.3
+                  version: v1.5.1
 
             - name: Install dependencies
               run: bun install --frozen-lockfile