diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 72dcfd3..f23d77c 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -7,7 +7,7 @@ kotlinter = "5.0.1" # https://github.com/jeremymailen/kotlinter-gradle
 # kotlinx
 kotlinx-coroutines = "1.10.1" # https://github.com/Kotlin/kotlinx.coroutines
 kotlinx-datetime = "0.6.2" # https://github.com/Kotlin/kotlinx-datetime
-kotlinx-serialization = "1.8.0" # https://github.com/Kotlin/kotlinx.serialization
+kotlinx-serialization = "1.9.0" # https://github.com/Kotlin/kotlinx.serialization
 
 # redis
 rethis = "0.2.9" # https://github.com/vendelieu/re.this