diff --git a/gradle/kotlinx.versions.toml b/gradle/kotlinx.versions.toml
index 86dff052e..82ca63100 100644
--- a/gradle/kotlinx.versions.toml
+++ b/gradle/kotlinx.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 kotlin_version = "2.1.21"
-serialization_version = "1.8.1"
+serialization_version = "1.9.0"
 xml_serialization_version = "0.91.1"
 
 [libraries]