diff --git a/app/build.gradle b/app/build.gradle
index 9d9bc8b..c9258cb 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,8 +27,9 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig = signingConfigs.debug
         }
     }
 
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index f1b4245..e6da7bd 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -19,3 +19,15 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+
+-keep class top.canyie.pine.examples.test.DirectRegisterJNITest{
+ native <methods>;
+}
+-keep class top.canyie.pine.examples.test.DynamicLookupJNITest{
+ native <methods>;
+}
+
+-keep class * extends top.canyie.pine.examples.test.Test{*;}
+-keep class  top.canyie.pine.examples.test.Test{*;}
+-keep class top.canyie.pine.examples.test.ConstructorTest$Target{*;}
+-keep class top.canyie.pine.examples.test.NotInitedTest$I{*;}
diff --git a/core/consumer-rules.pro b/core/consumer-rules.pro
index 601fb5a..d61c3bc 100644
--- a/core/consumer-rules.pro
+++ b/core/consumer-rules.pro
@@ -19,6 +19,6 @@
 }
 
 # Prevent R8 from removing "unused" library native methods while they're still being used
--keep class * {
+-keep class top.canyie.pine.Pine {
     native <methods>;
 }
diff --git a/enhances/consumer-rules.pro b/enhances/consumer-rules.pro
index 07281e6..e36e51d 100644
--- a/enhances/consumer-rules.pro
+++ b/enhances/consumer-rules.pro
@@ -1,4 +1,4 @@
 # Pine Enhances
 -keep class top.canyie.pine.enhances.PineEnhances {
-    private static void onClassInit(long);
+   native<methods>;
 }