diff --git a/build.gradle b/build.gradle
index 2dc5d53..f52b22e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,14 +1,14 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 apply from: "conf.gradle"
 buildscript {
-    ext.kotlin_version = '1.3.20'
+    ext.kotlin_version = '1.3.21'
     repositories {
         google()
         jcenter()
         
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.0'
+        classpath 'com.android.tools.build:gradle:3.3.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files