diff --git a/pom.xml b/pom.xml
index bda3301..bc2b2dd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
   </scm>
 
   <properties>
-    <kotlin.version>1.1.60</kotlin.version>
+    <kotlin.version>1.2.21</kotlin.version>
   </properties>
 
   <dependencyManagement>