diff --git a/build.gradle.kts b/build.gradle.kts
index 6637dae..d8dc7f9 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 plugins {
     id("com.github.johnrengelman.shadow") version Versions.com_github_johnrengelman_shadow_gradle_plugin
     id("de.fayard.buildSrcVersions") version Versions.de_fayard_buildsrcversions_gradle_plugin
-    kotlin("jvm") version "1.3.31"
+    kotlin("jvm") version Versions.org_jetbrains_kotlin_jvm_gradle_plugin
     application
 }
 
diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 3bdb703..15b61a2 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -1,8 +1,6 @@
-
 plugins {
     `kotlin-dsl`
 }
 repositories {
     jcenter()
-}
-        
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index 1229b5a..e1cf1a1 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -13,11 +13,11 @@ object Versions {
 
     const val de_fayard_buildsrcversions_gradle_plugin: String = "0.3.2" 
 
-    const val javalin: String = "3.0.0"
+    const val javalin: String = "3.0.0" 
 
-    const val org_jetbrains_kotlin_jvm_gradle_plugin: String = "1.3.31" 
+    const val org_jetbrains_kotlin_jvm_gradle_plugin: String = "1.3.40" 
 
-    const val org_jetbrains_kotlin: String = "1.3.31" 
+    const val org_jetbrains_kotlin: String = "1.3.40" 
 
     const val junit_jupiter: String = "5.4.2" 
 
@@ -33,7 +33,7 @@ object Versions {
 
         const val currentVersion: String = "5.4.1"
 
-        const val nightlyVersion: String = "5.6-20190615000035+0000"
+        const val nightlyVersion: String = "5.6-20190620000427+0000"
 
         const val releaseCandidate: String = "5.5-rc-3"
     }