diff --git a/compile-kotlin-test/build.gradle.kts b/compile-kotlin-test/build.gradle.kts
index e0dadf3..36cea45 100644
--- a/compile-kotlin-test/build.gradle.kts
+++ b/compile-kotlin-test/build.gradle.kts
@@ -14,8 +14,8 @@ buildscript {
 plugins {
     id("java")
     id("org.domaframework.doma.compile")
-    id("org.jetbrains.kotlin.jvm") version "2.1.10"
-    id("org.jetbrains.kotlin.kapt") version "2.1.10"
+    id("org.jetbrains.kotlin.jvm") version "2.1.20"
+    id("org.jetbrains.kotlin.kapt") version "2.1.20"
 }
 
 val domaVersion = "3.6.0"
diff --git a/compile-mix-test/build.gradle.kts b/compile-mix-test/build.gradle.kts
index 1ed6a80..bc22716 100644
--- a/compile-mix-test/build.gradle.kts
+++ b/compile-mix-test/build.gradle.kts
@@ -14,8 +14,8 @@ buildscript {
 plugins {
     id("java")
     id("org.domaframework.doma.compile")
-    id("org.jetbrains.kotlin.jvm") version "2.1.10"
-    id("org.jetbrains.kotlin.kapt") version "2.1.10"
+    id("org.jetbrains.kotlin.jvm") version "2.1.20"
+    id("org.jetbrains.kotlin.kapt") version "2.1.20"
 }
 
 val domaVersion = "3.6.0"