diff --git a/.github/workflows/build-app.yaml b/.github/workflows/build-app.yaml
index c048467a..06eed4c1 100644
--- a/.github/workflows/build-app.yaml
+++ b/.github/workflows/build-app.yaml
@@ -47,7 +47,7 @@ jobs:
         with:
           certificate: '${{ secrets.WINCERT_CERTIFICATE }}'
           password: '${{ secrets.WINCERT_PASSWORD }}'
-          certificatesha1: '${{ secrets.WINCERT_SHA1 }}'
+          certificatename: 'Jan Prochazka'
           folder: 'app/dist'
 
       - name: generatePadFile
diff --git a/app/package.json b/app/package.json
index e78f4506..76a16d4a 100644
--- a/app/package.json
+++ b/app/package.json
@@ -43,7 +43,8 @@
       "icon": "icon.ico",
       "publish": [
         "github"
-      ]
+      ],
+      "rfc3161TimeStampServer": "http://sha256timestamp.ws.symantec.com/sha256/timestamp"
     },
     "files": [
       "packages",