diff --git a/xml-cvs-parser/build.gradle b/xml-cvs-parser/build.gradle
old mode 100755
new mode 100644
index ae446ee..15628f8
--- a/xml-cvs-parser/build.gradle
+++ b/xml-cvs-parser/build.gradle
@@ -2,7 +2,7 @@ group 'xmlCvsParser'
 version '1.0-SNAPSHOT'
 
 buildscript {
-    ext.kotlin_version = '1.3.41'
+    ext.kotlin_version = '1.5.10'
 
     repositories {
         mavenCentral()