diff --git a/package.json b/package.json
index d8b861624..e4af9208d 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "generic-pool"          : "~3.8.2",
     "iconv"                 : "~3.0.1",
     "ipaddr.js"             : "~2.0.1",
-    "libqp"                 : "^1.1.0",
+    "libqp"                 : "^2.0.1",
     "libmime"               : "^5.0.0",
     "node-gyp"              : "^9.0.0",
     "nopt"                  : "~6.0.0",