diff --git a/plugin/build.gradle b/plugin/build.gradle
index d7de75d..f003331 100644
--- a/plugin/build.gradle
+++ b/plugin/build.gradle
@@ -11,7 +11,7 @@ dependencies {
     implementation gradleApi()
     //groovy sdk
     implementation localGroovy()
-    implementation "com.github.CodingGay.BlackObfuscator:dex-tools:2.0"
+    implementation "com.github.CodingGay.BlackObfuscator:dex-tools:2.1"
 }
 
 repositories {
diff --git a/plugin/src/main/groovy/top/niunaijun/blackobfuscator/BlackObfuscatorExtension.groovy b/plugin/src/main/groovy/top/niunaijun/blackobfuscator/BlackObfuscatorExtension.groovy
index 52b7910..3a26cd7 100644
--- a/plugin/src/main/groovy/top/niunaijun/blackobfuscator/BlackObfuscatorExtension.groovy
+++ b/plugin/src/main/groovy/top/niunaijun/blackobfuscator/BlackObfuscatorExtension.groovy
@@ -5,6 +5,7 @@ class BlackObfuscatorExtension {
     boolean enabled = false
     int depth = 1
     String[] obfClass = []
+    String[] blackClass = []
 
     BlackObfuscatorExtension(Project project) {
 
@@ -17,6 +18,7 @@ class BlackObfuscatorExtension {
                 "enabled=" + enabled +
                 ", depth=" + depth +
                 ", obfClass=" + Arrays.toString(obfClass) +
+                ", blackClass=" + Arrays.toString(blackClass) +
                 '}';
     }
 }
\ No newline at end of file
diff --git a/plugin/src/main/groovy/top/niunaijun/blackobfuscator/ObfPlugin.groovy b/plugin/src/main/groovy/top/niunaijun/blackobfuscator/ObfPlugin.groovy
index 370e852..005a5fb 100644
--- a/plugin/src/main/groovy/top/niunaijun/blackobfuscator/ObfPlugin.groovy
+++ b/plugin/src/main/groovy/top/niunaijun/blackobfuscator/ObfPlugin.groovy
@@ -34,7 +34,7 @@ public class ObfPlugin implements Plugin<Project> {
                     task.getOutputs().getFiles().collect().each() { element ->
                         def file = new File(element.toString())
                         ObfDex.obf(file.getAbsolutePath(),
-                                sObfuscatorExtension.depth, sObfuscatorExtension.obfClass)
+                                sObfuscatorExtension.depth, sObfuscatorExtension.obfClass, sObfuscatorExtension.blackClass)
                     }
                 }
             }
diff --git a/plugin/src/main/java/top/niunaijun/blackobfuscator/core/ObfDex.java b/plugin/src/main/java/top/niunaijun/blackobfuscator/core/ObfDex.java
index d03e0d8..2365ecc 100644
--- a/plugin/src/main/java/top/niunaijun/blackobfuscator/core/ObfDex.java
+++ b/plugin/src/main/java/top/niunaijun/blackobfuscator/core/ObfDex.java
@@ -19,7 +19,7 @@
  * 此处无Bug
  */
 public class ObfDex {
-    public static void obf(String dir, int depth, String[] obfClass) {
+    public static void obf(String dir, int depth, String[] obfClass, String[] blackClass) {
         File file = new File(dir);
         if (file.isDirectory()) {
             File[] files = file.listFiles();
@@ -27,17 +27,17 @@ public static void obf(String dir, int depth, String[] obfClass) {
                 return;
             for (File input : files) {
                 if (input.isFile()) {
-                    handleDex(input, depth, obfClass);
+                    handleDex(input, depth, obfClass, blackClass);
                 } else {
-                    obf(input.getAbsolutePath(), depth, obfClass);
+                    obf(input.getAbsolutePath(), depth, obfClass, blackClass);
                 }
             }
         } else {
-            handleDex(file, depth, obfClass);
+            handleDex(file, depth, obfClass, blackClass);
         }
     }
 
-    private static void handleDex(File input, int depth, String[] obfClass) {
+    private static void handleDex(File input, int depth, String[] obfClass, String[] blackClass) {
         if (!input.getAbsolutePath().endsWith(".dex"))
             return;
         File tempJar = null;
@@ -47,7 +47,7 @@ private static void handleDex(File input, int depth, String[] obfClass) {
             tempJar = new File(input.getParent(), System.currentTimeMillis() + "obf" + input.getName() + ".jar");
             splitDex = new File(input.getParent(), System.currentTimeMillis() + "split" + input.getName() + ".dex");
             obfDex = new File(input.getParent(), System.currentTimeMillis() + "obf" + input.getName() + ".dex");
-            long l = DexLib2Utils.splitDex(input, splitDex, Arrays.asList(obfClass));
+            long l = DexLib2Utils.splitDex(input, splitDex, Arrays.asList(obfClass), Arrays.asList(blackClass));
             if (l <= 0) {
                 System.out.println("Obfuscator Class not found");
                 return;