diff --git a/android/build.gradle b/android/build.gradle
index 5967b8b..d695592 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -14,6 +14,7 @@ android {
         targetSdkVersion safeExtGet('targetSdkVersion', 27)
         versionCode 1
         versionName "1.0"
+        consumerProguardFiles "proguard.pro"
     }
     sourceSets {
         main {
diff --git a/android/proguard.pro b/android/proguard.pro
new file mode 100644
index 0000000..4563039
--- /dev/null
+++ b/android/proguard.pro
@@ -0,0 +1,2 @@
+-keepnames class cn.reactnative.modules.update.DownloadTask { *; }
+-keepnames class com.facebook.react.ReactInstanceManager { *; }
\ No newline at end of file