diff --git a/apng_android/build.gradle b/apng_android/build.gradle
index 4f25965e..599bf7dd 100644
--- a/apng_android/build.gradle
+++ b/apng_android/build.gradle
@@ -16,7 +16,7 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
diff --git a/apng_android/proguard-rules.pro b/apng_android/proguard-rules.pro
index 6e7ffa99..73657cf8 100644
--- a/apng_android/proguard-rules.pro
+++ b/apng_android/proguard-rules.pro
@@ -19,3 +19,5 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+
+-dontobfuscate
diff --git a/app/build.gradle b/app/build.gradle
index 7e4f118c..54465853 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -24,7 +24,7 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             shrinkResources false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
 
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index a1faafe1..02530326 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -38,3 +38,4 @@
 ## for DexGuard only
 #-keepresourcexmlelements manifest/application/meta-data@value=GlideModule
 
+-dontobfuscate
diff --git a/colorpicker/proguard-rules.pro b/colorpicker/proguard-rules.pro
index 677edc8f..6e0f2c4e 100644
--- a/colorpicker/proguard-rules.pro
+++ b/colorpicker/proguard-rules.pro
@@ -15,3 +15,4 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+-dontobfuscate
diff --git a/emoji/build.gradle b/emoji/build.gradle
index 2d94260b..5ba78421 100644
--- a/emoji/build.gradle
+++ b/emoji/build.gradle
@@ -14,7 +14,7 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
diff --git a/emoji/proguard-rules.pro b/emoji/proguard-rules.pro
index 6e7ffa99..31438c7c 100644
--- a/emoji/proguard-rules.pro
+++ b/emoji/proguard-rules.pro
@@ -19,3 +19,4 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+-dontobfuscate
diff --git a/exif/build.gradle b/exif/build.gradle
index 28ee92b1..93674860 100644
--- a/exif/build.gradle
+++ b/exif/build.gradle
@@ -13,7 +13,7 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
diff --git a/exif/proguard-rules.pro b/exif/proguard-rules.pro
index acfee8c6..90e79ae6 100644
--- a/exif/proguard-rules.pro
+++ b/exif/proguard-rules.pro
@@ -23,3 +23,4 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+-dontobfuscate
diff --git a/gradle.properties b/gradle.properties
index 249dca40..9742482e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -22,4 +22,5 @@ org.gradle.jvmargs=-Xmx4096m
 org.gradle.caching=true
 android.useAndroidX=true
 android.enableJetifier=true
-
+android.debug.obsoleteApi=true
+android.enableR8=true
diff --git a/sample_apng/build.gradle b/sample_apng/build.gradle
index 795c199b..eddbf57e 100644
--- a/sample_apng/build.gradle
+++ b/sample_apng/build.gradle
@@ -18,7 +18,7 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
diff --git a/sample_apng/proguard-rules.pro b/sample_apng/proguard-rules.pro
index 6e7ffa99..31438c7c 100644
--- a/sample_apng/proguard-rules.pro
+++ b/sample_apng/proguard-rules.pro
@@ -19,3 +19,4 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+-dontobfuscate