diff --git a/android/build.gradle b/android/build.gradle
index 14d4245..a5bed15 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -31,7 +31,7 @@ android {
     buildTypes {
         release {
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
     lintOptions {
diff --git a/example/android/app/build.gradle b/example/android/app/build.gradle
index a045866..03e7ccf 100644
--- a/example/android/app/build.gradle
+++ b/example/android/app/build.gradle
@@ -13,7 +13,7 @@ android {
     buildTypes {
         release {
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
 }