diff --git a/build.gradle b/build.gradle
index 968b99b..8132e9d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,9 +4,11 @@ apply from: script('dependencies')
 buildscript {
     repositories {
         mavenCentral()
+        jcenter()
     }
     dependencies {
         classpath 'no.entitas.gradle.jaxb:gradle-jaxb-plugin:2.0'
+        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:0.3'
     }
 }
 
diff --git a/gradle.properties b/gradle.properties
index bb90a9e..984535a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
 group=com.bol.openapi
-version=4.0.0-SNAPSHOT
+version=4.0.0
diff --git a/gradle/publishing.gradle b/gradle/publishing.gradle
new file mode 100644
index 0000000..61a18a8
--- /dev/null
+++ b/gradle/publishing.gradle
@@ -0,0 +1,59 @@
+apply plugin: 'maven-publish'
+apply plugin: 'bintray'
+publishing {
+    publications {
+        main(MavenPublication) {
+            if (plugins.hasPlugin('war')) {
+                from components.web
+            } else {
+                from components.java
+            }
+            artifact sourcesJar
+//            artifact javadocJar
+//            artifact groovydocJar
+            pom.withXml {
+                asNode().with {
+                    appendNode('name', 'Bol.com OpenAPI Java client')
+                    appendNode('description', 'Bol.com OpenAPI Java client')
+                    appendNode('url', 'http://github.com/pvdissel/openapi-java')
+                    appendNode('licenses').with {
+                        appendNode('license').with {
+                            appendNode('name', 'MIT')
+                            appendNode('url', 'http://opensource.org/licenses/MIT')
+                        }
+                    }
+                    appendNode('developers').with {
+                        appendNode('developer').with {
+                            appendNode('id', 'pvdissel')
+                            appendNode('name', 'Patrick van Dissel')
+                            appendNode('email', 'pvdissel@gmail.com')
+                        }
+                    }
+                    appendNode('scm').with {
+                        appendNode('connection', 'git://github.com/pvdissel/openapi-java.git')
+                        appendNode('developerConnection', 'git@github.com:pvdissel/openapi-java.git')
+                        appendNode('url', 'http://github.com/pvdissel/openapi-java')
+                    }
+                }
+            }
+        }
+    }
+    repositories {
+        mavenLocal()
+    }
+}
+if (project.hasProperty('bintrayUser') && project.hasProperty('bintrayKey')) {
+    bintray {
+        user = project.bintrayUser
+        key = project.bintrayKey
+        publications = ['main']
+        pkg {
+            repo = 'bol-com-releases'
+            name = 'com.bol.openapi:openapi-java'
+            desc = 'Bol.com OpenAPI Java client'
+            licenses = ['Apache-2.0']
+            labels = []
+        }
+    }
+}
+bintrayUpload.dependsOn('generatePomFileForMainPublication', 'build')
diff --git a/subprojects/api/api.gradle b/subprojects/api/api.gradle
index cc541f5..2073344 100644
--- a/subprojects/api/api.gradle
+++ b/subprojects/api/api.gradle
@@ -22,3 +22,31 @@ def setTestProperties = {
 
 test setTestProperties
 integrationTest setTestProperties
+
+apply from: script('publishing')
+
+archivesBaseName = "${rootProject.name}-${project.name}"
+publishing {
+    publications {
+        main(MavenPublication) {
+            artifactId project.archivesBaseName
+        }
+    }
+}
+task sourcesJar(type: Jar) {
+    classifier = 'sources'
+    from sourceSets.main.allSource
+}
+task javadocJar(type: Jar) {
+    classifier = 'javadoc'
+    from javadoc.outputs.files
+}
+task groovydocJar(type: Jar) {
+    classifier = 'groovydoc'
+    from groovydoc.outputs.files
+}
+artifacts {
+    archives sourcesJar
+//    archives javadocJar
+//    archives groovydocJar
+}
diff --git a/subprojects/client/client.gradle b/subprojects/client/client.gradle
index 3515f27..4edc089 100644
--- a/subprojects/client/client.gradle
+++ b/subprojects/client/client.gradle
@@ -20,3 +20,31 @@ def setTestProperties = {
 
 test setTestProperties
 integrationTest setTestProperties
+
+apply from: script('publishing')
+
+archivesBaseName = "${rootProject.name}-${project.name}"
+publishing {
+    publications {
+        main(MavenPublication) {
+            artifactId project.archivesBaseName
+        }
+    }
+}
+task sourcesJar(type: Jar) {
+    classifier = 'sources'
+    from sourceSets.main.allSource
+}
+task javadocJar(type: Jar) {
+    classifier = 'javadoc'
+    from javadoc.outputs.files
+}
+task groovydocJar(type: Jar) {
+    classifier = 'groovydoc'
+    from groovydoc.outputs.files
+}
+artifacts {
+    archives sourcesJar
+//    archives javadocJar
+//    archives groovydocJar
+}
diff --git a/subprojects/client/src/integrationTest/groovy/com/bol/openapi/OpenApiClientIntegrationSpec.groovy b/subprojects/client/src/integrationTest/groovy/com/bol/openapi/OpenApiClientIntegrationSpec.groovy
index 291c152..76a662f 100644
--- a/subprojects/client/src/integrationTest/groovy/com/bol/openapi/OpenApiClientIntegrationSpec.groovy
+++ b/subprojects/client/src/integrationTest/groovy/com/bol/openapi/OpenApiClientIntegrationSpec.groovy
@@ -82,7 +82,7 @@ class OpenApiClientIntegrationSpec extends Specification {
 
         def product = results.products.get(0)
         println product.EAN
-        product.offerData.offers.size() > 1
+        product.offerData.offers.size() >= 1
     }
 
     def 'Return cheapest offer of a product'() {
diff --git a/subprojects/schema/schema.gradle b/subprojects/schema/schema.gradle
index 1d39a6c..3270c81 100644
--- a/subprojects/schema/schema.gradle
+++ b/subprojects/schema/schema.gradle
@@ -7,3 +7,31 @@ dependencies {
     testCompile libraries.spock
     testCompile libraries.hamcrest
 }
+
+apply from: script('publishing')
+
+archivesBaseName = "${rootProject.name}-${project.name}"
+publishing {
+    publications {
+        main(MavenPublication) {
+            artifactId project.archivesBaseName
+        }
+    }
+}
+task sourcesJar(type: Jar) {
+    classifier = 'sources'
+    from sourceSets.main.allSource
+}
+task javadocJar(type: Jar) {
+    classifier = 'javadoc'
+    from javadoc.outputs.files
+}
+task groovydocJar(type: Jar) {
+    classifier = 'groovydoc'
+    from groovydoc.outputs.files
+}
+artifacts {
+    archives sourcesJar
+//    archives javadocJar
+//    archives groovydocJar
+}