diff --git a/src/bld/java/net/thauvin/erik/bitly/BitlyShortenBuild.java b/src/bld/java/net/thauvin/erik/bitly/BitlyShortenBuild.java
index 8785f67..a972c01 100644
--- a/src/bld/java/net/thauvin/erik/bitly/BitlyShortenBuild.java
+++ b/src/bld/java/net/thauvin/erik/bitly/BitlyShortenBuild.java
@@ -69,7 +69,7 @@ public class BitlyShortenBuild extends Project {
         repositories = List.of(MAVEN_LOCAL, MAVEN_CENTRAL);
 
         var okHttp = version(4, 12, 0);
-        final var kotlin = version(2, 0, 20);
+        final var kotlin = version(2, 1, 10);
         scope(compile)
                 // Kotlin
                 .include(dependency("org.jetbrains.kotlin", "kotlin-stdlib", kotlin))