diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index 6ac67b39..6951a553 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -51,6 +51,24 @@
         </value>
       </option>
     </JavaCodeStyleSettings>
+    <JetCodeStyleSettings>
+      <option name="PACKAGES_TO_USE_STAR_IMPORTS">
+        <value>
+          <package name="java.util" alias="false" withSubpackages="false" />
+          <package name="kotlinx.android.synthetic" alias="false" withSubpackages="true" />
+          <package name="io.ktor" alias="false" withSubpackages="true" />
+        </value>
+      </option>
+      <option name="PACKAGES_IMPORT_LAYOUT">
+        <value>
+          <package name="" alias="false" withSubpackages="true" />
+          <package name="java" alias="false" withSubpackages="true" />
+          <package name="javax" alias="false" withSubpackages="true" />
+          <package name="kotlin" alias="false" withSubpackages="true" />
+          <package name="" alias="true" withSubpackages="true" />
+        </value>
+      </option>
+    </JetCodeStyleSettings>
     <XML>
       <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
     </XML>
diff --git a/build.gradle b/build.gradle
index 93e73be6..2f3660b3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,7 +9,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:4.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jlleitschuh.gradle:ktlint-gradle:9.2.1"
 
@@ -36,7 +36,7 @@ allprojects {
 }
 
 ext {
-    propCompileSdkVersion = 29
+    propCompileSdkVersion = 30
     coreVersion = "1.2.0"
     runnerVersion = "1.1.1"
     extJUnitVersion = "1.1.1"
diff --git a/sample/build.gradle b/sample/build.gradle
index 5a8b8c74..edb99ab9 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -12,7 +12,7 @@ android {
         versionName "1.0"
 
         minSdkVersion 16
-        targetSdkVersion 29
+        targetSdkVersion 30
 
         compileOptions {
             sourceCompatibility 1.8