diff --git a/example/build.gradle.kts b/example/build.gradle.kts
index 3650243..b17a59a 100644
--- a/example/build.gradle.kts
+++ b/example/build.gradle.kts
@@ -1,5 +1,4 @@
 import org.jetbrains.kotlin.gradle.dsl.Coroutines
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     application
@@ -16,12 +15,14 @@ repositories {
 }
 
 dependencies {
+    val ktorVersion = "1.0.0-beta-3"
+
     implementation(project(":"))
     implementation(kotlin("stdlib-jdk8"))
-    implementation("ch.qos.logback:logback-classic:${ext["logbackVersion"]}")
-    implementation("io.ktor:ktor-server-core:${ext["ktorVersion"]}")
-    implementation("io.ktor:ktor-server-netty:${ext["ktorVersion"]}")
-    implementation("io.ktor:ktor-gson:${ext["ktorVersion"]}")
+    implementation("ch.qos.logback:logback-classic:1.2.3")
+    implementation("io.ktor:ktor-server-core:${ktorVersion}")
+    implementation("io.ktor:ktor-server-netty:${ktorVersion}")
+    implementation("io.ktor:ktor-gson:${ktorVersion}")
 }
 
 kotlin {
diff --git a/example/gradle.properties b/example/gradle.properties
deleted file mode 100644
index d21eb4c..0000000
--- a/example/gradle.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-ktorVersion=1.0.0-beta-3
-logbackVersion=1.2.3
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index d76b502..ee69dd6 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-4.10.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists