diff --git a/.gitignore b/.gitignore
index f5251bf..b7306c2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@
 /react-native-pushy-cli/node_modules
 /react-native-pushy-cli/lib
 /android/build
+/android/obj
 *.iml
 
 # OSX
diff --git a/android/jni/Android.mk b/android/jni/Android.mk
new file mode 100644
index 0000000..6871e9f
--- /dev/null
+++ b/android/jni/Android.mk
@@ -0,0 +1,17 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := rnupdate
+LOCAL_SRC_FILES := \
+	DownloadTask.c \
+	blocksort.c \
+	bspatch.c \
+	bzlib.c \
+	crctable.c \
+	compress.c \
+	decompress.c \
+	huffman.c \
+	randtable.c
+
+include $(BUILD_SHARED_LIBRARY)
\ No newline at end of file
diff --git a/android/lib/arm64-v8a/librnupdate.so b/android/lib/arm64-v8a/librnupdate.so
new file mode 100755
index 0000000..ff8f7fd
Binary files /dev/null and b/android/lib/arm64-v8a/librnupdate.so differ
diff --git a/android/lib/armeabi-v7a/librnupdate.so b/android/lib/armeabi-v7a/librnupdate.so
index a423fbe..65201d6 100755
Binary files a/android/lib/armeabi-v7a/librnupdate.so and b/android/lib/armeabi-v7a/librnupdate.so differ
diff --git a/android/lib/x86/librnupdate.so b/android/lib/x86/librnupdate.so
index 5c683c4..e768339 100755
Binary files a/android/lib/x86/librnupdate.so and b/android/lib/x86/librnupdate.so differ
diff --git a/android/lib/x86_64/librnupdate.so b/android/lib/x86_64/librnupdate.so
new file mode 100755
index 0000000..3bfc8a6
Binary files /dev/null and b/android/lib/x86_64/librnupdate.so differ
diff --git a/package.json b/package.json
index 433eab9..69cb85c 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "react-native-update",
-  "version": "5.1.6",
+  "version": "5.1.7",
   "description": "react-native hot update",
   "main": "lib/index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
+    "build-lib": "$ANDROID_HOME/ndk-bundle/ndk-build NDK_PROJECT_PATH=android APP_BUILD_SCRIPT=android/jni/Android.mk NDK_LIBS_OUT=android/lib",
     "prepare": "node_modules/.bin/babel local-cli/src --out-dir local-cli/lib"
   },
   "repository": {