diff --git a/.github/workflows/macos-nightly.yml b/.github/workflows/macos-nightly.yml
index 4a14dae..dd813d5 100644
--- a/.github/workflows/macos-nightly.yml
+++ b/.github/workflows/macos-nightly.yml
@@ -32,6 +32,17 @@ jobs:
           rustup target add aarch64-apple-darwin
           npm install
           
+      - name: Set up keychain
+        run: |
+          security create-keychain -p "" build.keychain
+          security default-keychain -s build.keychain
+          security unlock-keychain -p "" build.keychain
+          security import <(echo "$MACOS_CERTIFICATE" | base64 --decode) -k build.keychain -P "$MACOS_CERTIFICATE_PASSWORD" -T /usr/bin/codesign
+          security set-key-partition-list -S apple-tool:,apple: -s -k "" build.keychain
+        env:
+          MACOS_CERTIFICATE: ${{ secrets.MACOS_CERTIFICATE }}
+          MACOS_CERTIFICATE_PASSWORD: ${{ secrets.MACOS_CERTIFICATE_PASSWORD }}
+          
       - name: Build Frontend
         run: npm run build