diff --git a/build.gradle b/build.gradle
index 9e454300c..b414bef5e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.3.41'
+    ext.kotlin_version = '1.3.50'
 
     repositories {
         mavenCentral()
@@ -35,9 +35,10 @@ subprojects {
         compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 
         testImplementation 'junit:junit:4.12'
-        testImplementation 'io.kotlintest:kotlintest-assertions:3.3.3'
+        testImplementation 'io.kotlintest:kotlintest-assertions:3.4.2'
         testImplementation 'com.github.stefanbirkner:system-rules:1.18.0'
         testImplementation 'com.google.jimfs:jimfs:1.1'
+        testImplementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
     }
 
     compileKotlin {
diff --git a/clikt/build.gradle b/clikt/build.gradle
index 6066cc14d..a7c57d61e 100644
--- a/clikt/build.gradle
+++ b/clikt/build.gradle
@@ -11,7 +11,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.2'
+        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 4b7e1f3d3..7c4388a92 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-5.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists