diff --git a/mockito-kotlin/build.gradle b/mockito-kotlin/build.gradle
index 8c089e00..f31f662b 100644
--- a/mockito-kotlin/build.gradle
+++ b/mockito-kotlin/build.gradle
@@ -3,7 +3,7 @@ apply from: '../gradle/publishing.gradle'
 apply plugin: 'org.jetbrains.dokka'
 
 buildscript {
-    ext.kotlin_version = "1.3.50"
+    ext.kotlin_version = "1.4.20"
 
     repositories {
         mavenCentral()