diff --git a/kotlin/hexagon-jetty/build.gradle b/kotlin/hexagon-jetty/build.gradle
index 5f422e4a10f..d2164159273 100644
--- a/kotlin/hexagon-jetty/build.gradle
+++ b/kotlin/hexagon-jetty/build.gradle
@@ -4,7 +4,7 @@ plugins {
 }
 
 ext {
-    hexagonVersion = "3.1.0"
+    hexagonVersion = "3.2.1"
     gradleScripts = "https://raw.githubusercontent.com/hexagonkt/hexagon/$hexagonVersion/gradle"
 }
 
diff --git a/kotlin/hexagon-netty-epoll/build.gradle b/kotlin/hexagon-netty-epoll/build.gradle
index 67be8be59a2..c9cdbfbe19c 100644
--- a/kotlin/hexagon-netty-epoll/build.gradle
+++ b/kotlin/hexagon-netty-epoll/build.gradle
@@ -4,7 +4,7 @@ plugins {
 }
 
 ext {
-    hexagonVersion = "3.1.0"
+    hexagonVersion = "3.2.1"
     nettyVersion = "4.1.+"
 
     gradleScripts = "https://raw.githubusercontent.com/hexagonkt/hexagon/$hexagonVersion/gradle"
diff --git a/kotlin/hexagon-netty/build.gradle b/kotlin/hexagon-netty/build.gradle
index f634c6822ac..9c0b93e20d9 100644
--- a/kotlin/hexagon-netty/build.gradle
+++ b/kotlin/hexagon-netty/build.gradle
@@ -4,7 +4,7 @@ plugins {
 }
 
 ext {
-    hexagonVersion = "3.1.0"
+    hexagonVersion = "3.2.1"
     gradleScripts = "https://raw.githubusercontent.com/hexagonkt/hexagon/$hexagonVersion/gradle"
 }