diff --git a/.github/workflows/bld.yml b/.github/workflows/bld.yml
index 297568a..c54ba1d 100644
--- a/.github/workflows/bld.yml
+++ b/.github/workflows/bld.yml
@@ -15,6 +15,7 @@ jobs:
       matrix:
         java-version: [17, 21, 22]
         kotlin-version: [1.19.24, 2.0.20]
+        kotlin-version: [1.9.25, 2.1.10]
 
     steps:
       - name: Checkout source repository
diff --git a/examples/gradle/build.gradle.kts b/examples/gradle/build.gradle.kts
index 603ddf0..c6c029f 100644
--- a/examples/gradle/build.gradle.kts
+++ b/examples/gradle/build.gradle.kts
@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 plugins {
     id("application")
     id("com.github.ben-manes.versions") version "0.51.0"
-    kotlin("jvm") version "2.0.20"
+    kotlin("jvm") version "2.1.10"
 }
 
 repositories {
diff --git a/src/bld/java/net/thauvin/erik/ReadingTimeBuild.java b/src/bld/java/net/thauvin/erik/ReadingTimeBuild.java
index c40253d..7b35b04 100644
--- a/src/bld/java/net/thauvin/erik/ReadingTimeBuild.java
+++ b/src/bld/java/net/thauvin/erik/ReadingTimeBuild.java
@@ -67,7 +67,7 @@ public class ReadingTimeBuild extends Project {
         autoDownloadPurge = true;
         repositories = List.of(MAVEN_LOCAL, MAVEN_CENTRAL);
 
-        final var kotlin = version(2, 0, 20);
+        final var kotlin = version(2, 1, 10);
         scope(compile)
                 .include(dependency("org.jetbrains.kotlin", "kotlin-stdlib", kotlin))
                 .include(dependency("org.jsoup", "jsoup", version(1, 19, 1)));