diff --git a/plain-benchmark/pom.xml b/plain-benchmark/pom.xml
index 724c0f8e..11fb65f6 100644
--- a/plain-benchmark/pom.xml
+++ b/plain-benchmark/pom.xml
@@ -80,7 +80,7 @@ THE POSSIBILITY OF SUCH DAMAGE.
            Available versions are listed here:
                 http://kotlinlang.org/docs/reference/using-maven.html#plugin-and-versions
          -->
-        <kotlin.version>1.2.30</kotlin.version>
+        <kotlin.version>1.6.0</kotlin.version>
 
         <!--
             Select a JMH benchmark generator to use. Available options: