diff --git a/build/util/sign.js b/build/util/sign.js
index 4293412e..73536c9a 100644
--- a/build/util/sign.js
+++ b/build/util/sign.js
@@ -1,9 +1,9 @@
 const fs = require('fs');
-const signer = require('pkcs15-smartcard-sign');
+const signer = require('pkcs11-smartcard-sign');
 const keytar = require('keytar');
 
 const verifyKey = fs.readFileSync('app/resources/public-key.pem');
-const key = '02';
+const signerOptions = JSON.parse(fs.readFileSync('keys/keeweb-sign.json', 'utf8'));
 
 function getPin() {
     if (getPin.pin) {
@@ -21,7 +21,7 @@ function getPin() {
 
 module.exports = function sign(grunt, data) {
     return getPin()
-        .then(pin => signer.sign({ data, verifyKey, pin, key }))
+        .then(pin => signer.sign({ data, verifyKey, pin, ...signerOptions }))
         .catch(err => {
             if (grunt) {
                 grunt.warn(`Error signing data: ${err}`);
diff --git a/package-lock.json b/package-lock.json
index 8d19084b..9b34e3e6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10617,11 +10617,6 @@
                 "pinkie": "^2.0.0"
             }
         },
-        "pkcs15-smartcard-sign": {
-            "version": "1.0.0",
-            "resolved": "https://registry.npmjs.org/pkcs15-smartcard-sign/-/pkcs15-smartcard-sign-1.0.0.tgz",
-            "integrity": "sha1-KTjZJCydRYJDcGG736T4S/xhdVE="
-        },
         "pkg-dir": {
             "version": "3.0.0",
             "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-3.0.0.tgz",
diff --git a/package.json b/package.json
index 6e790703..7c3f12fe 100644
--- a/package.json
+++ b/package.json
@@ -72,7 +72,7 @@
         "normalize.css": "8.0.1",
         "optimize-css-assets-webpack-plugin": "^5.0.3",
         "pikaday": "1.8.0",
-        "pkcs15-smartcard-sign": "^1.0.0",
+        "pkcs11-smartcard-sign": "^1.0.0",
         "postcss-loader": "^3.0.0",
         "prettier": "^1.19.1",
         "puppeteer": "^2.1.1",