diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index e3d9e5aa..15969e48 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -19,14 +19,11 @@ jobs:
       with:
           java-version: 1.8
 
-    - name: Grant execute permission for gradlew
-      run: chmod +x gradlew
-      
     - name: Build with Gradle
       run: chmod +x gradlew &&./gradlew assembleDebug
       
     - name: Upload APK
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v2
       with:
-        name: app
+        name: app-debug
         path: app/build/outputs/apk/debug/debug.apk
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index bdf71e3e..00000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-name: Build CI
-
-on:
-  - push
-  - pull_request
-
-env:
-  WARN_ON_PR: "artifact upload is disabled due to the workflow is trigged by pull request."
-
-jobs:
-  build:
-    name: Gradle CI
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-      name: Clone repository
-
-    - name: Prepare Java 11
-      uses: actions/setup-java@v1
-      with:
-        java-version: 11
-        java-package: jdk+fx
-
-    - name: Cache Gradle packages
-      uses: actions/cache@v2
-      with:
-        path: ~/.gradle/caches
-        key: ${{ hashFiles('**/*gradle*') }}
-        restore-keys: ${{ runner.os }}
-
-    - name: Build project
-      env:
-        DEBUG_KEY_PASSWORD: android
-        DEBUG_STORE_PASSWORD: android
-        DEBUG_KEY_ALIAS: androiddebugkey
-      run: |
-        if ${{ !!github.head_ref }}; then echo "::warning:: Gradle $WARN_ON_PR"; fi
-        gradle wrapper
-        bash gradlew assembleDebug
-    
-    - name: Upload articact
-      uses: actions/upload-artifact@v2
-      if: ${{ !github.head_ref }}
-      with:
-        path: app/build/outputs/apk
-        name: binary
diff --git a/hotxposed/build.gradle b/hotxposed/build.gradle
index 45cf36e5..f899a067 100644
--- a/hotxposed/build.gradle
+++ b/hotxposed/build.gradle
@@ -6,9 +6,6 @@ android {
   defaultConfig {
     minSdkVersion 14
     targetSdkVersion 29
-    versionCode 1
-    versionName "1.0"
-
   }
 
   buildTypes {
diff --git a/hotxposed/src/main/java/net/androidwing/hotxposed/HotXposed.java b/hotxposed/src/main/java/net/androidwing/hotxposed/HotXposed.java
index 2a2ba8f4..927a926b 100644
--- a/hotxposed/src/main/java/net/androidwing/hotxposed/HotXposed.java
+++ b/hotxposed/src/main/java/net/androidwing/hotxposed/HotXposed.java
@@ -17,7 +17,7 @@
  * Created  on 2018/3/30.
  */
 public class HotXposed {
-    public static void hook(Class clazz, XC_LoadPackage.LoadPackageParam lpparam)
+    public static void hook(Class<?> clazz, XC_LoadPackage.LoadPackageParam lpparam)
             throws Exception {
         String packageName = clazz.getName().replace("." + clazz.getSimpleName(), "");
         File apkFile = getApkFile(packageName, lpparam);
@@ -30,7 +30,7 @@ public static void hook(Class clazz, XC_LoadPackage.LoadPackageParam lpparam)
         filterNotify(lpparam);
 
         PathClassLoader classLoader = new PathClassLoader(apkFile.getAbsolutePath(), lpparam.getClass().getClassLoader());
-        Class cls = classLoader.loadClass(clazz.getName());
+        Class<?> cls = classLoader.loadClass(clazz.getName());
         if (cls != null) {
             Method method = cls.getDeclaredMethod("dispatch", XC_LoadPackage.LoadPackageParam.class);
             method.setAccessible(true);
@@ -44,7 +44,7 @@ private static void filterNotify(XC_LoadPackage.LoadPackageParam lpparam)
             XposedHelpers.findAndHookMethod(lpparam.classLoader.loadClass("de.robv.android.xposed.installer.util.NotificationUtil"),
                     "showModulesUpdatedNotification", new XC_MethodHook() {
                         @Override
-                        protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
+                        protected void beforeHookedMethod(MethodHookParam param) {
                             param.setResult(new Object());
                         }