diff --git a/README.md b/README.md
index 33213a3b..ca8add49 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![Compose Version](https://img.shields.io/badge/Jetpack%20Compose-1.5.4-yellow)](https://developer.android.com/jetpack/compose)
 [![Compose Version](https://img.shields.io/badge/Compose%20Multiplatform-1.5.10-yellow)](https://github.com/JetBrains/compose-multiplatform)
 [![WearCompose Version](https://img.shields.io/badge/Wear%20Compose-1.2.1-yellow)](https://developer.android.com/jetpack/androidx/releases/wear-compose)
-[![Kotlin Version](https://img.shields.io/badge/Kotlin-1.9.20-blue.svg)](https://kotlinlang.org)
+[![Kotlin Version](https://img.shields.io/badge/Kotlin-1.9.21-blue.svg)](https://kotlinlang.org)
 ![Android CI](https://github.com/phansier/Coffeegram/workflows/Android%20CI/badge.svg?branch=master)
 [![Jetc.dev](https://img.shields.io/badge/jetc.dev-25-blue)](https://jetc.dev/issues/025.html)
 [![Hits-of-Code](https://hitsofcode.com/github/phansier/Coffeegram?branch=develop)](https://hitsofcode.com/github/phansier/Coffeegram/view?branch=develop)
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 5d14cc5d..2810aa04 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -4,7 +4,7 @@ compileSdk = "34"
 minSdk = "21" # was "24" in desktop
 wearMinSdk = "25"
 
-kotlin = "1.9.20" # https://kotlinlang.org/docs/releases.html#release-details
+kotlin = "1.9.21" # https://kotlinlang.org/docs/releases.html#release-details
 agp = "8.1.4" # https://developer.android.com/studio/releases/gradle-plugin
 realm = "1.13.0" # https://github.com/realm/realm-kotlin
 
@@ -12,7 +12,7 @@ detekt = "1.23.4" # https://github.com/detekt/detekt
 detektCompose = "0.3.5" # https://github.com/mrmans0n/compose-rules
 
 compose = "1.5.4" # https://developer.android.com/jetpack/androidx/releases/compose-ui
-composeCompiler = "1.5.5" # https://developer.android.com/jetpack/androidx/releases/compose-compiler
+composeCompiler = "1.5.6" # https://developer.android.com/jetpack/androidx/releases/compose-compiler
 # https://developer.android.com/jetpack/androidx/releases/compose-kotlin
 wearCompose = "1.2.1" # https://developer.android.com/jetpack/androidx/releases/wear-compose
 coroutines = "1.7.3" # https://github.com/Kotlin/kotlinx.coroutines