diff --git a/README.adoc b/README.adoc
index 51215c5..11286b4 100644
--- a/README.adoc
+++ b/README.adoc
@@ -2,8 +2,8 @@
 :toclevels: 2
 
 = Poiji
-:version: v3.2.0
-:branch: 3.2.0
+:version: v4.0.0
+:branch: 4.0.0
 
 image:https://github.com/ozlerhakan/poiji/actions/workflows/maven.yml/badge.svg["Build Status"] image:https://app.codacy.com/project/badge/Grade/64f7e2cb9e604807b62334a4cfc3952d["Codacy code quality",link="https://www.codacy.com/gh/ozlerhakan/poiji/dashboard?utm_source=github.com&utm_medium=referral&utm_content=ozlerhakan/poiji&utm_campaign=Badge_Grade"]
 image:https://codecov.io/gh/ozlerhakan/poiji/branch/{branch}/graph/badge.svg?token=MN6V6xOWBq["Codecov",link="https://codecov.io/gh/ozlerhakan/poiji"] image:https://img.shields.io/badge/apache.poi-5.2.1-brightgreen.svg[] image:https://app.fossa.com/api/projects/git%2Bgithub.com%2Fozlerhakan%2Fpoiji.svg?type=shield["FOSSA Status",link="https://app.fossa.com/projects/git%2Bgithub.com%2Fozlerhakan%2Fpoiji?ref=badge_shield"]
@@ -25,18 +25,10 @@ In your Maven/Gradle project, first add the corresponding dependency:
 <dependency>
   <groupId>com.github.ozlerhakan</groupId>
   <artifactId>poiji</artifactId>
-  <version>3.2.0</version>
+  <version>4.0.0</version>
 </dependency>
 ----
 
-.gradle
-[source,groovy]
-----
-dependencies {
-    compile 'com.github.ozlerhakan:poiji:3.2.0'
-}
-----
-
 You can find the latest and earlier development versions including javadoc and source files on https://oss.sonatype.org/content/groups/public/com/github/ozlerhakan/poiji/[Sonatypes OSS repository].
 
 == Usage
@@ -615,7 +607,7 @@ Note that If you use the `PoijiOptionsBuilder#caseInsensitive(true)` option, the
 
 === Optional Mandatory Headers and Cells
 
-As of 3.2.0, `@ExcelCellName` and `@ExcelCell` are given to provide `mandatoryHeader` and `mandatoryCell` fields, meaning we can be more specific by declaring rules in headers or cells or both in excel files. `mandatoryHeader` expects the labeled excel column exists in a given excel file, while `mandatoryCell` looks into the values of the mentioned header/column. If any of the options is active and your excel breaks the rule, either a `HeaderMissingException` or `PoijiMultiRowException`  will be thrown accordingly.
+As of 4.0.0, `@ExcelCellName` and `@ExcelCell` are given to provide `mandatoryHeader` and `mandatoryCell` fields, meaning we can be more specific by declaring rules in headers or cells or both in excel files. `mandatoryHeader` expects the labeled excel column exists in a given excel file, while `mandatoryCell` looks into the values of the mentioned header/column. If any of the options is active and your excel breaks the rule, either a `HeaderMissingException` or `PoijiMultiRowException`  will be thrown accordingly.
 
 ----
 // default behavior
diff --git a/pom.xml b/pom.xml
index db81bed..660c626 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.github.ozlerhakan</groupId>
     <artifactId>poiji</artifactId>
-    <version>3.2.0</version>
+    <version>4.0.0</version>
     <packaging>jar</packaging>
 
     <name>poiji</name>