diff --git a/doctork/pom.xml b/doctork/pom.xml
index 29446b0..1264ab0 100644
--- a/doctork/pom.xml
+++ b/doctork/pom.xml
@@ -92,7 +92,7 @@
 		<dependency>
 			<groupId>org.scala-lang</groupId>
 			<artifactId>scala-library</artifactId>
-			<version>2.12.7</version>
+			<version>2.13.6</version>
 		</dependency>
 		<!-- https://mvnrepository.com/artifact/io.dropwizard.metrics/metrics-core -->
 		<dependency>