diff --git a/build.gradle.kts b/build.gradle.kts
index 2e54a5c..b431e73 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -24,12 +24,12 @@ import java.time.Instant
 gradle.startParameter.showStacktrace = ShowStacktrace.ALWAYS   // always show the stacktrace!
 
 plugins {
-    id("com.dorkbox.GradleUtils") version "2.16"
-    id("com.dorkbox.Licensing") version "2.9.2"
-    id("com.dorkbox.VersionUpdate") version "2.4"
-    id("com.dorkbox.GradlePublish") version "1.11"
+    id("com.dorkbox.GradleUtils") version "3.5"
+    id("com.dorkbox.Licensing") version "2.17"
+    id("com.dorkbox.VersionUpdate") version "2.5"
+    id("com.dorkbox.GradlePublish") version "1.13"
 
-    kotlin("jvm") version "1.5.21"
+    kotlin("jvm") version "1.6.0"
 }
 
 object Extras {
@@ -116,13 +116,16 @@ dependencies {
     implementation("com.dorkbox:Updates:1.1")
 
     // listed as compileOnly, since we will be using netty bytebuf utils if we ALREADY are using netty byte buffs. **We don't want a hard dependency.**
-    compileOnly("io.netty:netty-buffer:4.1.66.Final")
-    compileOnly("com.esotericsoftware:kryo:5.2.0")
+    compileOnly("io.netty:netty-buffer:4.1.86.Final")
+    compileOnly("com.esotericsoftware:kryo:5.4.0")
 
 
-    testImplementation("io.netty:netty-buffer:4.1.66.Final")
-    testImplementation("com.esotericsoftware:kryo:5.2.0")
-    testImplementation("junit:junit:4.13")
+    testImplementation("io.netty:netty-buffer:4.1.86.Final")
+    testImplementation("com.esotericsoftware:kryo:5.4.0")
+    testImplementation("junit:junit:4.13.2")
+}
+repositories {
+    mavenCentral()
 }
 
 publishToSonatype {