diff --git a/app/build.gradle b/app/build.gradle
index 1d5a6270..fa72fcec 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,7 +8,7 @@ android {
 
     defaultConfig {
         applicationId "com.github.catvod.demo"
-        minSdk 21
+        minSdk 17
         targetSdk 29
         ndk { abiFilters "armeabi-v7a" }
         buildConfigField("String", "CLIENT_ID", "\"${clientId}\"")
@@ -28,8 +28,8 @@ android {
     }
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
 }
 
@@ -41,6 +41,6 @@ dependencies {
     implementation 'com.google.net.cronet:cronet-okhttp:0.1.0'
     implementation 'com.google.code.gson:gson:2.8.6'
     implementation 'cn.wanghaomiao:JsoupXpath:2.5.1'
-    implementation 'com.google.zxing:core:3.4.1'
+    implementation 'com.google.zxing:core:3.3.0'
     implementation 'org.jsoup:jsoup:1.15.3'
 }
\ No newline at end of file
diff --git a/jar/custom_spider.jar b/jar/custom_spider.jar
index 9e6c170b..cd964745 100644
Binary files a/jar/custom_spider.jar and b/jar/custom_spider.jar differ
diff --git a/jar/custom_spider.jar.md5 b/jar/custom_spider.jar.md5
index afa5b9ba..4fa7e28b 100644
--- a/jar/custom_spider.jar.md5
+++ b/jar/custom_spider.jar.md5
@@ -1 +1 @@
-39bab949d9f60a43f46bc63b6bdcbeba
+c08916c262b65e7a7caff865d900f3b7