diff --git a/pom.xml b/pom.xml
index 1efe38e..2a4367b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,14 +10,14 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <kotlin.version>1.3.10</kotlin.version>
+    <kotlin.version>1.3.20</kotlin.version>
     <junit5.version>5.3.1</junit5.version>
     <skipTests>false</skipTests>
   </properties>
 
   <build>
-    <sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
-    <testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
+    <sourceDirectory>src/main/kotlin</sourceDirectory>
+    <testSourceDirectory>src/test/kotlin</testSourceDirectory>
 
     <plugins>
       <plugin>