diff --git a/.idea/kotlinc.xml b/.idea/kotlinc.xml
index e805548..8d81632 100644
--- a/.idea/kotlinc.xml
+++ b/.idea/kotlinc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="KotlinJpsPluginSettings">
-    <option name="version" value="1.9.20" />
+    <option name="version" value="1.9.22" />
   </component>
 </project>
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71ae8dd..c4c0dd1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 1.6.3
 * server: added support for SSE (Server-Side Events) to `HttpExchange`
 * json: improve parsing of complex types with parameters
 * jdbc: introduce `NullableId` for entities with null ids until they are persisted.
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 975a195..593431e 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -3,7 +3,7 @@ rootProject.name = "klite"
 dependencyResolutionManagement {
   versionCatalogs {
     create("libs") {
-      version("kotlin", "1.9.20")
+      version("kotlin", "1.9.22")
 
       val coroutines = version("coroutines", "1.7.3")
       library("kotlinx-coroutines", "org.jetbrains.kotlinx", "kotlinx-coroutines-jdk8").versionRef(coroutines)