diff --git a/approvaltests-tests/pom.xml b/approvaltests-tests/pom.xml
index 5361d690..f6e5f1e3 100644
--- a/approvaltests-tests/pom.xml
+++ b/approvaltests-tests/pom.xml
@@ -12,7 +12,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <kotlin.version>2.4.10</kotlin.version>
+        <kotlin.version>2.4.20</kotlin.version>
     </properties>
 
     <dependencyManagement>