diff --git a/src/main/scala/gitbucket/core/plugin/PluginRegistory.scala b/src/main/scala/gitbucket/core/plugin/PluginRegistory.scala
index b299004..c0bc923 100644
--- a/src/main/scala/gitbucket/core/plugin/PluginRegistory.scala
+++ b/src/main/scala/gitbucket/core/plugin/PluginRegistory.scala
@@ -175,7 +175,7 @@
       }).foreach { pluginJar =>
         val classLoader = new URLClassLoader(Array(pluginJar.toURI.toURL), Thread.currentThread.getContextClassLoader)
         try {
-          val plugin = classLoader.loadClass("Plugin").newInstance().asInstanceOf[Plugin]
+          val plugin = classLoader.loadClass("Plugin").getDeclaredConstructor().newInstance().asInstanceOf[Plugin]
 
           // Migration
           val solidbase = new Solidbase()