diff --git a/src/main/scala/service/WikiService.scala b/src/main/scala/service/WikiService.scala
index 8c02515..7f32904 100644
--- a/src/main/scala/service/WikiService.scala
+++ b/src/main/scala/service/WikiService.scala
@@ -6,7 +6,6 @@
 import org.apache.commons.io.FileUtils
 import util.JGitUtil.DiffInfo
 import util.{Directory, JGitUtil}
-import org.eclipse.jgit.lib.RepositoryBuilder
 import org.eclipse.jgit.treewalk.CanonicalTreeParser
 import java.util.concurrent.ConcurrentHashMap
 
diff --git a/src/main/scala/util/Directory.scala b/src/main/scala/util/Directory.scala
index f2b7f4c..754d737 100644
--- a/src/main/scala/util/Directory.scala
+++ b/src/main/scala/util/Directory.scala
@@ -1,8 +1,6 @@
 package util
 
 import java.io.File
-import org.eclipse.jgit.api.Git
-import org.eclipse.jgit.lib.Ref
 
 /**
  * Provides directories used by GitBucket.
diff --git a/src/main/scala/util/FileUtil.scala b/src/main/scala/util/FileUtil.scala
index 01f8874..b56c7f4 100644
--- a/src/main/scala/util/FileUtil.scala
+++ b/src/main/scala/util/FileUtil.scala
@@ -1,6 +1,6 @@
 package util
 
-import org.apache.commons.io.{IOUtils, FileUtils, FilenameUtils}
+import org.apache.commons.io.{IOUtils, FileUtils}
 import java.net.URLConnection
 import java.io.File
 import org.apache.commons.compress.archivers.zip.{ZipArchiveEntry, ZipArchiveOutputStream}
diff --git a/src/main/scala/util/Validations.scala b/src/main/scala/util/Validations.scala
index 1d42d99..dd383e3 100644
--- a/src/main/scala/util/Validations.scala
+++ b/src/main/scala/util/Validations.scala
@@ -1,7 +1,6 @@
 package util
 
 import jp.sf.amateras.scalatra.forms._
-import scala.Some
 
 trait Validations {