diff --git a/README.md b/README.md
index ef7241a5714e..515435774784 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 <div align="center">
 
-[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`4.0.0`): [![Build Status](https://img.shields.io/travis/OpenAPITools/openapi-generator/master.svg?label=Integration%20Test)](https://travis-ci.org/OpenAPITools/openapi-generator)
+[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`4.0.1`): [![Build Status](https://img.shields.io/travis/OpenAPITools/openapi-generator/master.svg?label=Integration%20Test)](https://travis-ci.org/OpenAPITools/openapi-generator)
 [![Integration Test2](https://circleci.com/gh/OpenAPITools/openapi-generator.svg?style=shield)](https://circleci.com/gh/OpenAPITools/openapi-generator)
 [![Run Status](https://api.shippable.com/projects/5af6bf74e790f4070084a115/badge?branch=master)](https://app.shippable.com/github/OpenAPITools/openapi-generator)
 [![Windows Test](https://ci.appveyor.com/api/projects/status/github/openapitools/openapi-generator?branch=master&svg=true&passingText=Windows%20Test%20-%20OK&failingText=Windows%20Test%20-%20Fails)](https://ci.appveyor.com/project/WilliamCheng/openapi-generator-wh2wu)
@@ -100,7 +100,7 @@ OpenAPI Generator Version    | Release Date | Notes
 5.0.0 (upcoming major release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/5.0.0-SNAPSHOT/)| 13.05.2019 | Major release with breaking changes (no fallback)
 4.1.0 (upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/4.1.0-SNAPSHOT/)| 15.07.2019 | Minor release (breaking changes with fallbacks)
 4.0.1 (upcoming patch release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/4.0.1-SNAPSHOT/)| 31.05.2019 | Patch release (minor bug fixes, etc)
-[4.0.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v4.0.0) (latest stable release) | 13.05.2019 | Major release with breaking changes (with or without fallback)
+[4.0.1](https://github.com/OpenAPITools/openapi-generator/releases/tag/v4.0.1) (latest stable release) | 31.05.2019 | Patch release (bug fixes, minor enhancements, etc)
 
 OpenAPI Spec compatibility: 1.0, 1.1, 1.2, 2.0, 3.0
 
@@ -156,16 +156,16 @@ See the different versions of the [openapi-generator-cli](https://mvnrepository.
 
 If you're looking for the latest stable version, you can grab it directly from Maven.org (Java 8 runtime at a minimum):
 
-JAR location: `http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.0/openapi-generator-cli-4.0.0.jar`
+JAR location: `http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.1/openapi-generator-cli-4.0.1.jar`
 
 For **Mac/Linux** users:
 ```sh
-wget http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.0/openapi-generator-cli-4.0.0.jar -O openapi-generator-cli.jar
+wget http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.1/openapi-generator-cli-4.0.1.jar -O openapi-generator-cli.jar
 ```
 
 For **Windows** users, you will need to install [wget](http://gnuwin32.sourceforge.net/packages/wget.htm) or you can use Invoke-WebRequest in PowerShell (3.0+), e.g.
 ```
-Invoke-WebRequest -OutFile openapi-generator-cli.jar http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.0/openapi-generator-cli-4.0.0.jar
+Invoke-WebRequest -OutFile openapi-generator-cli.jar http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.1/openapi-generator-cli-4.0.1.jar
 ```
 
 After downloading the JAR, run `java -jar openapi-generator-cli.jar help` to show the usage.
@@ -368,10 +368,10 @@ npm install @openapitools/openapi-generator-cli -g
 openapi-generator version
 ```
 
-Or install a particualar OpenAPI Generator version (e.g. v4.0.0):
+Or install a particualar OpenAPI Generator version (e.g. v4.0.1):
 
 ```sh
-npm install @openapitools/openapi-generator-cli@cli-4.0.0 -g
+npm install @openapitools/openapi-generator-cli@cli-4.0.1 -g
 ```
 
 Or install it as dev-dependency:
@@ -394,7 +394,7 @@ java -jar modules/openapi-generator-cli/target/openapi-generator-cli.jar generat
 ```
 (if you're on Windows, replace the last command with `java -jar modules\openapi-generator-cli\target\openapi-generator-cli.jar generate -i https://raw.githubusercontent.com/openapitools/openapi-generator/master/modules/openapi-generator/src/test/resources/2_0/petstore.yaml -g php -o c:\temp\php_api_client`)
 
-You can also download the JAR (latest release) directly from [maven.org](http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.0/openapi-generator-cli-4.0.0.jar)
+You can also download the JAR (latest release) directly from [maven.org](http://central.maven.org/maven2/org/openapitools/openapi-generator-cli/4.0.1/openapi-generator-cli-4.0.1.jar)
 
 To get a list of **general** options available, please run `java -jar modules/openapi-generator-cli/target/openapi-generator-cli.jar help generate`
 
diff --git a/modules/openapi-generator-cli/pom.xml b/modules/openapi-generator-cli/pom.xml
index 9d25e9ee6422..468f112e4999 100644
--- a/modules/openapi-generator-cli/pom.xml
+++ b/modules/openapi-generator-cli/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
-        <version>4.0.1-SNAPSHOT</version>
+        <version>4.0.1</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/openapi-generator-core/pom.xml b/modules/openapi-generator-core/pom.xml
index 8471cd437363..84c75594d6df 100644
--- a/modules/openapi-generator-core/pom.xml
+++ b/modules/openapi-generator-core/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>openapi-generator-project</artifactId>
     <groupId>org.openapitools</groupId>
-    <version>4.0.1-SNAPSHOT</version>
+    <version>4.0.1</version>
     <relativePath>../..</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/modules/openapi-generator-gradle-plugin/README.adoc b/modules/openapi-generator-gradle-plugin/README.adoc
index c31c31291d3b..47200a6754c0 100644
--- a/modules/openapi-generator-gradle-plugin/README.adoc
+++ b/modules/openapi-generator-gradle-plugin/README.adoc
@@ -48,7 +48,7 @@ buildscript {
     mavenCentral()
   }
   dependencies {
-    classpath "org.openapitools:openapi-generator-gradle-plugin:4.0.0"
+    classpath "org.openapitools:openapi-generator-gradle-plugin:4.0.1"
   }
 }
 
@@ -599,7 +599,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.2.1'
-        classpath('org.openapitools:openapi-generator-gradle-plugin:4.0.0') {
+        classpath('org.openapitools:openapi-generator-gradle-plugin:4.0.1') {
             exclude group: 'com.google.guava'
         }
     }
diff --git a/modules/openapi-generator-gradle-plugin/pom.xml b/modules/openapi-generator-gradle-plugin/pom.xml
index f71f96b6e233..d599d590ed2a 100644
--- a/modules/openapi-generator-gradle-plugin/pom.xml
+++ b/modules/openapi-generator-gradle-plugin/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
-        <version>4.0.1-SNAPSHOT</version>
+        <version>4.0.1</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/openapi-generator-gradle-plugin/samples/local-spec/README.md b/modules/openapi-generator-gradle-plugin/samples/local-spec/README.md
index 41a9877bce05..ca68b2306f49 100644
--- a/modules/openapi-generator-gradle-plugin/samples/local-spec/README.md
+++ b/modules/openapi-generator-gradle-plugin/samples/local-spec/README.md
@@ -17,5 +17,5 @@ gradle generateGoWithInvalidSpec
 The samples can be tested against other versions of the plugin using the `openApiGeneratorVersion` property. For example:
 
 ```bash
-gradle -PopenApiGeneratorVersion=4.0.0 openApiValidate
+gradle -PopenApiGeneratorVersion=4.0.1 openApiValidate
 ```
diff --git a/modules/openapi-generator-gradle-plugin/samples/local-spec/gradle.properties b/modules/openapi-generator-gradle-plugin/samples/local-spec/gradle.properties
index f291e113171a..11f18bc06edc 100644
--- a/modules/openapi-generator-gradle-plugin/samples/local-spec/gradle.properties
+++ b/modules/openapi-generator-gradle-plugin/samples/local-spec/gradle.properties
@@ -1 +1 @@
-openApiGeneratorVersion=4.0.0
+openApiGeneratorVersion=4.0.1
diff --git a/modules/openapi-generator-maven-plugin/README.md b/modules/openapi-generator-maven-plugin/README.md
index 6042810eb886..bcf211db7d4e 100644
--- a/modules/openapi-generator-maven-plugin/README.md
+++ b/modules/openapi-generator-maven-plugin/README.md
@@ -11,7 +11,7 @@ Add to your `build->plugins` section (default phase is `generate-sources` phase)
 <plugin>
     <groupId>org.openapitools</groupId>
     <artifactId>openapi-generator-maven-plugin</artifactId>
-    <version>4.0.0</version>
+    <version>4.0.1</version>
     <executions>
         <execution>
             <goals>
diff --git a/modules/openapi-generator-maven-plugin/examples/java-client.xml b/modules/openapi-generator-maven-plugin/examples/java-client.xml
index ce15e7171b6c..a5d30ddddd71 100644
--- a/modules/openapi-generator-maven-plugin/examples/java-client.xml
+++ b/modules/openapi-generator-maven-plugin/examples/java-client.xml
@@ -12,7 +12,7 @@
             <plugin>
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
-                <version>4.0.0</version>
+                <version>4.0.1</version>
                 <executions>
                     <execution>
                         <goals>
diff --git a/modules/openapi-generator-maven-plugin/examples/non-java-invalid-spec.xml b/modules/openapi-generator-maven-plugin/examples/non-java-invalid-spec.xml
index 1a3df39f0a3c..95d2ae2cdb8f 100644
--- a/modules/openapi-generator-maven-plugin/examples/non-java-invalid-spec.xml
+++ b/modules/openapi-generator-maven-plugin/examples/non-java-invalid-spec.xml
@@ -12,7 +12,7 @@
             <plugin>
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
-                <version>4.0.0</version>
+                <version>4.0.1</version>
                 <executions>
                     <execution>
                         <goals>
diff --git a/modules/openapi-generator-maven-plugin/examples/non-java.xml b/modules/openapi-generator-maven-plugin/examples/non-java.xml
index d0c9da3e3f53..e1801b2a5df2 100644
--- a/modules/openapi-generator-maven-plugin/examples/non-java.xml
+++ b/modules/openapi-generator-maven-plugin/examples/non-java.xml
@@ -12,7 +12,7 @@
             <plugin>
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
-                <version>4.0.0</version>
+                <version>4.0.1</version>
                 <executions>
                     <execution>
                         <goals>
diff --git a/modules/openapi-generator-maven-plugin/pom.xml b/modules/openapi-generator-maven-plugin/pom.xml
index 5bb537d2144c..c9b4b7696adc 100644
--- a/modules/openapi-generator-maven-plugin/pom.xml
+++ b/modules/openapi-generator-maven-plugin/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
-        <version>4.0.1-SNAPSHOT</version>
+        <version>4.0.1</version>
         <relativePath>../..</relativePath>
     </parent>
     <artifactId>openapi-generator-maven-plugin</artifactId>
diff --git a/modules/openapi-generator-online/pom.xml b/modules/openapi-generator-online/pom.xml
index 447a13e51c18..4173e162c71d 100644
--- a/modules/openapi-generator-online/pom.xml
+++ b/modules/openapi-generator-online/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
-        <version>4.0.1-SNAPSHOT</version>
+        <version>4.0.1</version>
         <relativePath>../..</relativePath>
     </parent>
     <artifactId>openapi-generator-online</artifactId>
diff --git a/modules/openapi-generator/pom.xml b/modules/openapi-generator/pom.xml
index 079848a3f689..98d97ed795ed 100644
--- a/modules/openapi-generator/pom.xml
+++ b/modules/openapi-generator/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
-        <version>4.0.1-SNAPSHOT</version>
+        <version>4.0.1</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -313,7 +313,7 @@
         <dependency>
             <groupId>org.openapitools</groupId>
             <artifactId>openapi-generator-core</artifactId>
-            <version>4.0.1-SNAPSHOT</version>
+            <version>4.0.1</version>
         </dependency>
     </dependencies>
     <repositories>
diff --git a/pom.xml b/pom.xml
index 3dfa2d45ad47..79c8a1c4e0f8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
     <artifactId>openapi-generator-project</artifactId>
     <packaging>pom</packaging>
     <name>openapi-generator-project</name>
-    <version>4.0.1-SNAPSHOT</version>
+    <version>4.0.1</version>
     <url>https://github.com/openapitools/openapi-generator</url>
     <scm>
         <connection>scm:git:git@github.com:openapitools/openapi-generator.git</connection>
diff --git a/samples/meta-codegen/lib/pom.xml b/samples/meta-codegen/lib/pom.xml
index f6782f61d1df..c5e12fc377e8 100644
--- a/samples/meta-codegen/lib/pom.xml
+++ b/samples/meta-codegen/lib/pom.xml
@@ -121,7 +121,7 @@
     </dependencies>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <openapi-generator-version>4.0.1-SNAPSHOT</openapi-generator-version>
+        <openapi-generator-version>4.0.1</openapi-generator-version>
         <maven-plugin-version>1.0.0</maven-plugin-version>
         <junit-version>4.8.1</junit-version>
     </properties>