diff --git a/pom.xml b/pom.xml
index a6b709a..0b1c0a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <packaging.type>minify,runnable</packaging.type>
-        <kotlin.version>1.4.20</kotlin.version>
+        <kotlin.version>1.6.0</kotlin.version>
         <testServerHttpPort>9080</testServerHttpPort>
         <testServerHttpsPort>9443</testServerHttpsPort>
         <warContext>kotlinHello</warContext>