Update libplist version requirement
diff --git a/configure.ac b/configure.ac
index ad243c9..1ce7bf2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@
 
 
 dnl Minimum package versions
-LIBPLIST_VERSION=1.11
+LIBPLIST_VERSION=2.1.0
 
 AC_SUBST(LIBUSBMUXD_SO_VERSION)
 AC_SUBST(LIBPLIST_VERSION)