diff --git a/build.gradle b/build.gradle
index ad7f92dd..22a85fe7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ buildscript {
         maven { url 'https://maven.fabric.io/public' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.3'
+        classpath 'com.android.tools.build:gradle:4.0.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ff8fd741..29e5e6d4 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Feb 29 09:07:20 KST 2020
+#Thu Jun 18 15:48:09 KST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
diff --git a/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt b/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
index bd3661a6..40b99b3c 100644
--- a/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
+++ b/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
@@ -82,7 +82,7 @@ class UnitTest {
 
     @Test
     fun test_hiyobi() {
-        val reader = xyz.quaver.hiyobi.getReader(1574736)
+        val reader = xyz.quaver.hiyobi.getReader(1663418)
 
         print(reader)
     }