diff --git a/build.gradle.kts b/build.gradle.kts
index 7c412b9..5ec5f0c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -17,6 +17,7 @@ repositories {
 dependencies {
     implementation(kotlin("stdlib-jdk8"))
     implementation(Libs.javalin)
+    implementation(Libs.javalin_openapi)
     implementation(Libs.slf4j_simple)
     implementation(Libs.jackson_databind)
     implementation(Libs.jackson_module_kotlin)
diff --git a/buildSrc/src/main/kotlin/Libs.kt b/buildSrc/src/main/kotlin/Libs.kt
index 74552ea..fc459d8 100644
--- a/buildSrc/src/main/kotlin/Libs.kt
+++ b/buildSrc/src/main/kotlin/Libs.kt
@@ -74,4 +74,6 @@ object Libs {
      * https://javalin.io
      */
     const val javalin: String = "io.javalin:javalin:" + Versions.javalin
+
+    const val javalin_openapi: String = "io.javalin:javalin-openapi:" + Versions.javalin
 }
diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index c2b6f0c..255b8be 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 = "1.3.70"
+    const val org_jetbrains_kotlin: String = "1.3.72" // available: "1.3.72"
 
     const val com_github_johnrengelman_shadow_gradle_plugin: String = "5.2.0"
 
     const val de_fayard_buildsrcversions_gradle_plugin: String = "0.7.0"
 
-    const val org_jetbrains_kotlin_jvm_gradle_plugin: String = "1.3.70"
+    const val org_jetbrains_kotlin_jvm_gradle_plugin: String = "1.3.72" // available: "1.3.72"
 
-    const val jackson_module_kotlin: String = "2.10.3"
+    const val jackson_module_kotlin: String = "2.11.0" // available: "2.11.0"
 
-    const val kotlin_openapi3_dsl: String = "0.20.2"
+    const val kotlin_openapi3_dsl: String = "0.21.1" // available: "0.21.1"
 
-    const val jackson_databind: String = "2.10.3"
+    const val jackson_databind: String = "2.11.0" // available: "2.11.0"
 
-    const val junit_jupiter: String = "5.6.0"
+    const val junit_jupiter: String = "5.6.2" // available: "5.6.2"
 
     const val slf4j_simple: String = "1.7.30"
 
-    const val swagger_core: String = "2.1.1"
+    const val swagger_core: String = "2.1.2" // available: "2.1.2"
 
-    const val swagger_ui: String = "3.25.0"
+    const val swagger_ui: String = "3.26.0" // available: "3.26.0"
 
-    const val javalin: String = "3.7.0"
+    const val javalin: String = "3.9.0" // available: "3.9.0"
 
     /**
-     * Current version: "6.2.2"
+     * Current version: "6.5"
      * See issue 19: How to update Gradle itself?
      * https://github.com/jmfayard/buildSrcVersions/issues/19
      */
-    const val gradleLatestVersion: String = "6.2.2"
+    const val gradleLatestVersion: String = "6.5"
 }
 
 /**
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index cc4fdc2..f3d88b1 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 84a9066..622ab64 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-6.2.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew.bat b/gradlew.bat
index 24467a1..9109989 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -29,6 +29,9 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"