diff --git a/.all-contributorsrc b/.all-contributorsrc
new file mode 100644
index 0000000..c869009
--- /dev/null
+++ b/.all-contributorsrc
@@ -0,0 +1,18 @@
+{
+  "files": [
+    "README.adoc"
+  ],
+  "imageSize": 100,
+  "contributorsPerLine": 7,
+  "badgeTemplate": "[![All Contributors](https://img.shields.io/badge/all_contributors-<%= contributors.length %>-orange.svg?style=flat-square)](#contributors)",
+  "contributorTemplate": "<a href=\"<%= contributor.profile %>\"><img src=\"<%= contributor.avatar_url %>\" width=\"<%= options.imageSize %>px;\" alt=\"\"/><br /><sub><b><%= contributor.name %></b></sub></a>",
+  "types": {
+    "custom": {
+      "symbol": "🔭",
+      "description": "A custom contribution type.",
+      "link": "[<%= symbol %>](<%= url %> \"<%= description %>\"),"
+    }
+  },
+  "skipCi": "true",
+  "contributors": []
+}
\ No newline at end of file
diff --git a/README.adoc b/README.adoc
index 37ec9c0..8ba5fed 100644
--- a/README.adoc
+++ b/README.adoc
@@ -1,5 +1,5 @@
 = Poiji
-:version: v2.3.0
+:version: v2.4.0
 
 image:https://travis-ci.org/ozlerhakan/poiji.svg?branch=master["Build Status", link="https://travis-ci.org/ozlerhakan/poiji"] image:https://api.codacy.com/project/badge/Grade/6587e90886184da29a1b7c5634695c9d["Codacy code quality", link="https://www.codacy.com/app/ozlerhakan/poiji?utm_source=github.com&utm_medium=referral&utm_content=ozlerhakan/poiji&utm_campaign=Badge_Grade"] image:https://coveralls.io/repos/github/ozlerhakan/poiji/badge.svg?branch=master["Coverage Status", link="https://coveralls.io/github/ozlerhakan/poiji?branch=master"] image:https://img.shields.io/badge/apache.poi-4.1.0-brightgreen.svg[] image:https://img.shields.io/badge/gitter-join%20chat-blue.svg["Gitter", link="https://gitter.im/poiji/Lobby"] image:https://img.shields.io/badge/license-MIT-blue.svg[]
 
@@ -15,7 +15,7 @@ In your Maven/Gradle project, first add the corresponding dependency:
 <dependency>
   <groupId>com.github.ozlerhakan</groupId>
   <artifactId>poiji</artifactId>
-  <version>2.3.0</version>
+  <version>2.4.0</version>
 </dependency>
 ----
 
@@ -23,7 +23,7 @@ In your Maven/Gradle project, first add the corresponding dependency:
 [source,groovy]
 ----
 dependencies {
-    compile 'com.github.ozlerhakan:poiji:2.3.0'
+    compile 'com.github.ozlerhakan:poiji:2.4.0'
 }
 ----
 
diff --git a/pom.xml b/pom.xml
index c52b800..90de1a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.github.ozlerhakan</groupId>
     <artifactId>poiji</artifactId>
-    <version>2.3.0</version>
+    <version>2.4.0</version>
     <packaging>jar</packaging>
 
     <name>poiji</name>