diff --git a/build.gradle.kts b/build.gradle.kts
index 5ec5f0c..5c7a8ee 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -33,7 +33,10 @@ application {
 }
 
 tasks.withType<KotlinCompile> {
-    kotlinOptions.jvmTarget = "1.8"
+    kotlinOptions {
+        jvmTarget = "1.8"
+        useIR = true
+    }
 }
 
 tasks.withType<Test> {
diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index e81f889..6841469 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -12,36 +12,36 @@ import org.gradle.plugin.use.PluginDependencySpec
  * YOU are responsible for updating manually the dependency version.
  */
 object Versions {
-    const val org_jetbrains_kotlin: String = "1.4.30"
+    const val org_jetbrains_kotlin: String = "1.4.31" // available: "1.4.31"
 
-    const val io_javalin: String = "3.13.3"
+    const val io_javalin: String = "3.13.4" // available: "3.13.4"
 
     const val com_github_johnrengelman_shadow_gradle_plugin: String = "6.1.0"
 
     const val de_fayard_buildsrcversions_gradle_plugin: String = "0.7.0"
 
-    const val org_jetbrains_kotlin_jvm_gradle_plugin: String = "1.4.30"
+    const val org_jetbrains_kotlin_jvm_gradle_plugin: String = "1.4.31" // available: "1.4.31"
 
-    const val jackson_module_kotlin: String = "2.12.1"
+    const val jackson_module_kotlin: String = "2.12.2" // available: "2.12.2"
 
     const val kotlin_openapi3_dsl: String = "1.0.0"
 
-    const val jackson_databind: String = "2.12.1"
+    const val jackson_databind: String = "2.12.2" // available: "2.12.2"
 
     const val junit_jupiter: String = "5.7.1"
 
     const val slf4j_simple: String = "1.7.30"
 
-    const val swagger_core: String = "2.1.6"
+    const val swagger_core: String = "2.1.7" // available: "2.1.7"
 
-    const val swagger_ui: String = "3.42.0"
+    const val swagger_ui: String = "3.45.0" // available: "3.45.0"
 
     /**
      * Current version: "6.8.1"
      * See issue 19: How to update Gradle itself?
      * https://github.com/jmfayard/buildSrcVersions/issues/19
      */
-    const val gradleLatestVersion: String = "6.8.2"
+    const val gradleLatestVersion: String = "6.8.3"
 }
 
 /**
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 28ff446..442d913 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists