diff --git a/build.gradle b/build.gradle
index edd667d..58a4c52 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,7 +9,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.0-rc03'
+        classpath 'com.android.tools.build:gradle:3.4.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle.properties b/gradle.properties
index 6965ca3..b5d1398 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -21,7 +21,7 @@ proj_name=kotlinknifer
 proj_libname=KotlinKnifer
 proj_group=com.devrapid.jieyi
 proj_artifactid=kotlinknifer
-proj_version=2.1.9
+proj_version=2.1.10
 proj_description=For developing an Android conveniently and rapidly.
 proj_websiteurl=https://github.com/pokk/KotlinKnifer
 proj_issuetrackerurl=https://github.com/pokk/KotlinKnifer/issues
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 4701b85..d8b7f92 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4-all.zip
diff --git a/kotlinknifer/build.gradle b/kotlinknifer/build.gradle
index 0ce1017..a4e97b4 100644
--- a/kotlinknifer/build.gradle
+++ b/kotlinknifer/build.gradle
@@ -34,7 +34,7 @@ dependencies {
     implementation "org.jetbrains.anko:anko-commons:0.10.8"
     implementation "androidx.appcompat:appcompat:1.0.2"
     implementation "androidx.core:core-ktx:1.0.1"
-    implementation "androidx.recyclerview:recyclerview:1.1.0-alpha02"
+    implementation "androidx.recyclerview:recyclerview:1.1.0-alpha04"
     implementation "androidx.palette:palette:1.0.0"
     compile project(":kotlinshaver")
 }
diff --git a/sample/build.gradle b/sample/build.gradle
index a2e14a0..1f3fbcd 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -17,12 +17,16 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    packagingOptions {
+        exclude "META-INF/atomicfu.kotlin_module"
+        exclude "META-INF/kotlinx-coroutines-core.kotlin_module"
+    }
 }
 
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     implementation 'androidx.appcompat:appcompat:1.0.2'
-    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha4'
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     implementation project(':kotlinknifer')
 //    implementation "com.devrapid.jieyi:kotlinknifer:1.4.1"