diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 38e228d180..a9341a7826 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -7,7 +7,7 @@ graphql-java = "22.1"
 graalvm = "0.10.2"
 jackson = "2.17.1"
 # kotlin version has to match the compile-testing compiler version
-kotlin = "1.9.24"
+kotlin = "2.0.0"
 kotlinx-benchmark = "0.4.11"
 kotlinx-coroutines = "1.8.1"
 # TODO kotlin 1.9 upgrade: fix GraphQLTestUtils and GenerateKotlinxClientIT