diff --git a/.idea/kotlinc.xml b/.idea/kotlinc.xml
index 76f6344..b495d7c 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="2.3.20" />
+    <option name="version" value="2.3.21" />
   </component>
 </project>
diff --git a/build.gradle.kts b/build.gradle.kts
index 8051370..696259d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -7,5 +7,5 @@ buildscript {
 
 allprojects {
     group = "com.rickclephas.kmp"
-    version = "1.0.8"
+    version = "1.0.8-kotlin-2.3.21-RC"
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index ef23fe6..d82ecae 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-kotlin = "2.3.20"
+kotlin = "2.3.21"
 
 [libraries]
 kotlin-gradle-plugin = { module = "org.jetbrains.kotlin:kotlin-gradle-plugin", version.ref = "kotlin" }