diff --git a/pom.xml b/pom.xml
index 010fddd..9f1bbc4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
         <!-- Project properties -->
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.jdkVersion>1.8</project.jdkVersion>
-        <kotlin.version>1.3.61</kotlin.version>
+        <kotlin.version>1.3.71</kotlin.version>
 
         <!-- Output properties -->
         <project.outputName>PerWorldInventory</project.outputName>
@@ -244,6 +244,17 @@
             <version>${kotlin.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib-jdk8</artifactId>
+            <version>${kotlin.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-test</artifactId>
+            <version>${kotlin.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <distributionManagement>
@@ -258,8 +269,8 @@
     </distributionManagement>
 
     <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>
 
         <defaultGoal>clean install</defaultGoal>
         <resources>
@@ -295,11 +306,13 @@
                 <executions>
                     <execution>
                         <id>compile</id>
+                        <phase>compile</phase>
                         <goals> <goal>compile</goal> </goals>
                     </execution>
 
                     <execution>
                         <id>test-compile</id>
+                        <phase>test-compile</phase>
                         <goals> <goal>test-compile</goal> </goals>
                     </execution>
                 </executions>