diff --git a/package-lock.json b/package-lock.json
index 1c61cb3..3cfec0b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -94,11 +94,6 @@
         "email-addresses": "^3.0.0"
       }
     },
-    "addressparser": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/addressparser/-/addressparser-1.0.1.tgz",
-      "integrity": "sha1-R6++GiqSYhkdtoOOT9HTm0CCF0Y="
-    },
     "ajv": {
       "version": "6.9.2",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.9.2.tgz",
diff --git a/package.json b/package.json
index a04b56a..e6d9968 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,6 @@
     "release:archive": "zip -rq release.zip package.json package-lock.json node_modules/ *.js src/ config/"
   },
   "dependencies": {
-    "addressparser": "1.0.1",
     "co-body": "6.0.0",
     "config": "3.0.1",
     "koa": "2.7.0",
diff --git a/src/service/pgp.js b/src/service/pgp.js
index 92d32d5..589f3f9 100644
--- a/src/service/pgp.js
+++ b/src/service/pgp.js
@@ -20,7 +20,6 @@
 const log = require('winston');
 const util = require('./util');
 const openpgp = require('openpgp');
-const addressparser = require('addressparser');
 
 const KEY_BEGIN = '-----BEGIN PGP PUBLIC KEY BLOCK-----';
 const KEY_END = '-----END PGP PUBLIC KEY BLOCK-----';
@@ -131,16 +130,18 @@ class PGP {
     for (const user of users) {
       const userStatus = await user.verify(primaryKey, verifyDate);
       if (userStatus !== openpgp.enums.keyStatus.invalid && user.userId && user.userId.userid) {
-        const uid = addressparser(user.userId.userid)[0];
-        if (util.isEmail(uid.address)) {
-          // map to local user id object format
-          result.push({
-            status: userStatus,
-            name: uid.name,
-            email: util.normalizeEmail(uid.address),
-            verified: false
-          });
-        }
+        try {
+          const uid = openpgp.util.parseUserId(user.userId.userid);
+          if (util.isEmail(uid.email)) {
+            // map to local user id object format
+            result.push({
+              status: userStatus,
+              name: uid.name,
+              email: util.normalizeEmail(uid.email),
+              verified: false
+            });
+          }
+        } catch (e) {}
       }
     }
     return result;