diff --git a/README.md b/README.md
index 064bccb..7a139bc 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,9 @@ This is a GitBucket plug-in which provides code snippet repository like Gist.
 
 Plugin version | GitBucket version
 :--------------|:--------------------
-4.10.x         | 4.15.x -
-4.9.x          | 4.14.x -
+4.11.x         | 4.19.x -
+4.10.x         | 4.15.x - 4.18.x
+4.9.x          | 4.14.x
 4.8.x          | 4.11.x - 4.13.x
 4.7.x          | 4.11.x
 4.6.x          | 4.10.x
@@ -36,6 +37,8 @@ See [Connect to H2 database](https://github.com/gitbucket/gitbucket/wiki/Connect
 
 ## Build from source
 
-1. Install sbt and hit `sbt package` in the root directory of this repository.
-2. Copy `target/scala-2.12/gitbucket-gist-plugin_2.12-x.x.x.jar` into `GITBUCKET_HOME/plugins`.
-3. Restart GitBucket.
+1. Install sbt and hit `sbt assembly` in the root directory of this repository.
+2. Copy `target/scala-2.12/gitbucket-gist-plugin-assembly-x.x.x.jar` into `GITBUCKET_HOME/plugins`.
+3. GitBucket restarts automatically.
+
+or you can build and install by just hitting `sbt install`.
diff --git a/build.sbt b/build.sbt
index f22d896..24c2f71 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,19 +1,8 @@
-val Organization = "io.github.gitbucket"
-val ProjectName = "gitbucket-gist-plugin"
-val ProjectVersion = "4.10.0"
-val GitBucketVersion = Option(System.getProperty("gitbucket.version")).getOrElse("4.18.0")
-
-lazy val root = (project in file(".")).enablePlugins(SbtTwirl)
-
-organization := Organization
-name := ProjectName
-version := ProjectVersion
+organization := "io.github.gitbucket"
+name := "gitbucket-gist-plugin"
+version := "4.11.0"
 scalaVersion := "2.12.4"
-
-libraryDependencies ++= Seq(
-  "io.github.gitbucket" %% "gitbucket"         % GitBucketVersion % "provided",
-  "javax.servlet"        % "javax.servlet-api" % "3.1.0"          % "provided"
-)
+gitbucketVersion := Option(System.getProperty("gitbucket.version")).getOrElse("4.19.0")
 
 scalacOptions := Seq("-deprecation", "-feature", "-language:postfixOps")
 javacOptions in compile ++= Seq("-target", "8", "-source", "8")
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 056c065..46eac21 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,3 +1,4 @@
 logLevel := Level.Warn
 
 addSbtPlugin("com.typesafe.sbt" % "sbt-twirl" % "1.3.12")
+addSbtPlugin("io.github.gitbucket" % "sbt-gitbucket-plugin" % "1.2.0")
\ No newline at end of file
diff --git a/src/main/scala/Plugin.scala b/src/main/scala/Plugin.scala
index c029d4f..b35b9cf 100755
--- a/src/main/scala/Plugin.scala
+++ b/src/main/scala/Plugin.scala
@@ -32,7 +32,8 @@ class Plugin extends gitbucket.core.plugin.Plugin {
     new Version("4.8.0"),
     new Version("4.9.0"),
     new Version("4.9.1"),
-    new Version("4.10.0")
+    new Version("4.10.0"),
+    new Version("4.11.0")
   )
 
   override def initialize(registry: PluginRegistry, context: ServletContext, settings: SystemSettings): Unit = {
diff --git a/src/main/scala/gitbucket/gist/controller/GistController.scala b/src/main/scala/gitbucket/gist/controller/GistController.scala
index fc2e69c..0d972fc 100644
--- a/src/main/scala/gitbucket/gist/controller/GistController.scala
+++ b/src/main/scala/gitbucket/gist/controller/GistController.scala
@@ -2,7 +2,7 @@ package gitbucket.gist.controller
 
 import java.io.File
 import gitbucket.core.view.helpers
-import io.github.gitbucket.scalatra.forms._
+import org.scalatra.forms._
 
 import gitbucket.core.controller.ControllerBase
 import gitbucket.core.service.AccountService
@@ -193,7 +193,7 @@ trait GistControllerBase extends ControllerBase {
         case Right((revisions, hasNext)) => {
           val commits = revisions.map { revision =>
             defining(JGitUtil.getRevCommitFromId(git, git.getRepository.resolve(revision.id))){ revCommit =>
-              JGitUtil.getDiffs(git, revision.id, false) match { case (diffs, oldCommitId) =>
+              JGitUtil.getDiffs(git, revision.id, true) match { case (diffs, oldCommitId) =>
                 (revision, diffs)
               }
             }