diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04bc839..943ddf7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 <!-- Categories: Added, Changed, Deprecated, Removed, Fixed, Security -->
 
 ## [Unreleased]
+
+## [0.2.3] - 2019-05-02
 - added support for unmodifiable test-provided parameters via `TestConfigs.fixed(..)`
 - extended JSON response
 
diff --git a/pom.xml b/pom.xml
index 774bd0c..6984de7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>net.oneandone.httpselftest</groupId>
     <artifactId>selftest-parent</artifactId>
-    <version>0.2-SNAPSHOT</version>
+    <version>0.2.3</version>
     <packaging>pom</packaging>
 
     <modules>
diff --git a/selftest-core/pom.xml b/selftest-core/pom.xml
index 3299165..ffbf023 100644
--- a/selftest-core/pom.xml
+++ b/selftest-core/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>net.oneandone.httpselftest</groupId>
         <artifactId>selftest-parent</artifactId>
-        <version>0.2-SNAPSHOT</version>
+        <version>0.2.3</version>
     </parent>
 
     <artifactId>selftest-core</artifactId>
diff --git a/selftest-nologger-tests/pom.xml b/selftest-nologger-tests/pom.xml
index 3616d7a..f188181 100644
--- a/selftest-nologger-tests/pom.xml
+++ b/selftest-nologger-tests/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>net.oneandone.httpselftest</groupId>
         <artifactId>selftest-parent</artifactId>
-        <version>0.2-SNAPSHOT</version>
+        <version>0.2.3</version>
     </parent>
 
     <artifactId>selftest-nologger-tests</artifactId>
diff --git a/selftest-springboot-example/pom.xml b/selftest-springboot-example/pom.xml
index 9541601..afe9055 100644
--- a/selftest-springboot-example/pom.xml
+++ b/selftest-springboot-example/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>net.oneandone.httpselftest</groupId>
         <artifactId>selftest-parent</artifactId>
-        <version>0.2-SNAPSHOT</version>
+        <version>0.2.3</version>
     </parent>
 
     <artifactId>selftest-springboot-example</artifactId>