diff --git a/build/config.groovy b/build/config.groovy
index 1b34dcf72e..7a2bd31049 100644
--- a/build/config.groovy
+++ b/build/config.groovy
@@ -5,7 +5,7 @@
 project = {
 	// version
 	// major.minor.micro-SNAPSHOT - remove -SNAPSHOT for releases
-	version = '5.1.0-SNAPSHOT'
+	version = '5.0.1'
 
 	// when increasing the version number, at least the version of the .application bundles
 	// should be increased so they state an updated application version
diff --git a/doc/plugins/eu.esdihumboldt.hale.doc.application/Infocenter.product b/doc/plugins/eu.esdihumboldt.hale.doc.application/Infocenter.product
index 4975382e8e..6c6c714e79 100644
--- a/doc/plugins/eu.esdihumboldt.hale.doc.application/Infocenter.product
+++ b/doc/plugins/eu.esdihumboldt.hale.doc.application/Infocenter.product
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <?pde version="3.5"?>
 
-<product name="halestudio Infocenter" uid="eu.esdihumboldt.hale.infocenter" id="eu.esdihumboldt.hale.doc.application.InfoCenter" application="eu.esdihumboldt.hale.doc.application.infocenterApplication" version="5.1.0.qualifier" useFeatures="false" includeLaunchers="true">
+<product name="halestudio Infocenter" uid="eu.esdihumboldt.hale.infocenter" id="eu.esdihumboldt.hale.doc.application.InfoCenter" application="eu.esdihumboldt.hale.doc.application.infocenterApplication" version="5.0.1.qualifier" useFeatures="false" includeLaunchers="true">
 
    <configIni use="default">
    </configIni>
diff --git a/doc/plugins/eu.esdihumboldt.hale.doc.application/META-INF/MANIFEST.MF b/doc/plugins/eu.esdihumboldt.hale.doc.application/META-INF/MANIFEST.MF
index f3bcba9e52..777586b6ff 100644
--- a/doc/plugins/eu.esdihumboldt.hale.doc.application/META-INF/MANIFEST.MF
+++ b/doc/plugins/eu.esdihumboldt.hale.doc.application/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: HALE Infocenter
 Bundle-SymbolicName: eu.esdihumboldt.hale.doc.application;singleton:=true
-Bundle-Version: 5.1.0.qualifier
+Bundle-Version: 5.0.1.qualifier
 Require-Bundle: org.eclipse.core.runtime;bundle-version="3.7.0",
  org.eclipse.help;bundle-version="3.5.100",
  org.eclipse.help.base;bundle-version="3.6.1"
diff --git a/ui/plugins/eu.esdihumboldt.hale.ui.application/HALE.product b/ui/plugins/eu.esdihumboldt.hale.ui.application/HALE.product
index 5d64a9f9b2..4664b4afd5 100644
--- a/ui/plugins/eu.esdihumboldt.hale.ui.application/HALE.product
+++ b/ui/plugins/eu.esdihumboldt.hale.ui.application/HALE.product
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <?pde version="3.5"?>
 
-<product name="hale studio" uid="eu.esdihumboldt.hale" id="eu.esdihumboldt.hale.ui.application.HALE" application="eu.esdihumboldt.hale.ui.application" version="5.1.0.qualifier" useFeatures="true" includeLaunchers="true" autoIncludeRequirements="false">
+<product name="hale studio" uid="eu.esdihumboldt.hale" id="eu.esdihumboldt.hale.ui.application.HALE" application="eu.esdihumboldt.hale.ui.application" version="5.0.1.qualifier" useFeatures="true" includeLaunchers="true" autoIncludeRequirements="false">
 
    <aboutInfo>
       <image path="/eu.esdihumboldt.hale.ui.application/images/hale_about.png"/>
diff --git a/ui/plugins/eu.esdihumboldt.hale.ui.application/META-INF/MANIFEST.MF b/ui/plugins/eu.esdihumboldt.hale.ui.application/META-INF/MANIFEST.MF
index c5f69375ec..8a7ffbd036 100644
--- a/ui/plugins/eu.esdihumboldt.hale.ui.application/META-INF/MANIFEST.MF
+++ b/ui/plugins/eu.esdihumboldt.hale.ui.application/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: HALE Application
 Bundle-SymbolicName: eu.esdihumboldt.hale.ui.application;singleton:=true
-Bundle-Version: 5.1.0.qualifier
+Bundle-Version: 5.0.1.qualifier
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.eclipse.core.runtime;bundle-version="3.6.0",
  org.eclipse.ui;bundle-version="3.6.2",