diff --git a/app/src/app/java/io/legado/app/help/AppUpdateGitHub.kt b/app/src/app/java/io/legado/app/help/AppUpdateGitHub.kt
index 3e8572993..8da8effca 100644
--- a/app/src/app/java/io/legado/app/help/AppUpdateGitHub.kt
+++ b/app/src/app/java/io/legado/app/help/AppUpdateGitHub.kt
@@ -1,5 +1,6 @@
 package io.legado.app.help
 
+import androidx.annotation.Keep
 import io.legado.app.R
 import io.legado.app.constant.AppConst
 import io.legado.app.exception.NoStackTraceException
@@ -11,6 +12,7 @@ import io.legado.app.utils.readString
 import kotlinx.coroutines.CoroutineScope
 import splitties.init.appCtx
 
+@Keep
 @Suppress("unused")
 object AppUpdateGitHub: AppUpdate.AppUpdateInterface {
 
diff --git a/app/src/app/java/io/legado/app/lib/cronet/AbsCallBack.kt b/app/src/app/java/io/legado/app/lib/cronet/AbsCallBack.kt
index 073970dfe..31897d3c0 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/AbsCallBack.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/AbsCallBack.kt
@@ -1,5 +1,6 @@
 package io.legado.app.lib.cronet
 
+import androidx.annotation.Keep
 import io.legado.app.help.http.okHttpClient
 import io.legado.app.utils.DebugLog
 import io.legado.app.utils.asIOException
@@ -15,6 +16,7 @@ import java.io.IOException
 import java.nio.ByteBuffer
 import java.util.*
 
+@Keep
 abstract class AbsCallBack(
     val originalRequest: Request,
     val mCall: Call,
diff --git a/app/src/app/java/io/legado/app/lib/cronet/BodyUploadProvider.kt b/app/src/app/java/io/legado/app/lib/cronet/BodyUploadProvider.kt
index c8daf38d3..e62838369 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/BodyUploadProvider.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/BodyUploadProvider.kt
@@ -1,5 +1,6 @@
 package io.legado.app.lib.cronet
 
+import androidx.annotation.Keep
 import okhttp3.RequestBody
 import okio.Buffer
 import org.chromium.net.UploadDataProvider
@@ -7,6 +8,7 @@ import org.chromium.net.UploadDataSink
 import java.io.IOException
 import java.nio.ByteBuffer
 
+@Keep
 class BodyUploadProvider(private val body: RequestBody) : UploadDataProvider(), AutoCloseable {
     private val buffer = Buffer()
 
diff --git a/app/src/app/java/io/legado/app/lib/cronet/CronetCoroutineInterceptor.kt b/app/src/app/java/io/legado/app/lib/cronet/CronetCoroutineInterceptor.kt
index 8701f4c11..5bef442f4 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/CronetCoroutineInterceptor.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/CronetCoroutineInterceptor.kt
@@ -1,5 +1,6 @@
 package io.legado.app.lib.cronet
 
+import androidx.annotation.Keep
 import io.legado.app.help.http.cookieJar
 import io.legado.app.utils.printOnDebug
 import kotlinx.coroutines.runBlocking
@@ -13,6 +14,7 @@ import java.io.IOException
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 
+@Keep
 @Suppress("unused")
 class CronetCoroutineInterceptor : Interceptor {
     override fun intercept(chain: Interceptor.Chain): Response {
diff --git a/app/src/app/java/io/legado/app/lib/cronet/CronetHelper.kt b/app/src/app/java/io/legado/app/lib/cronet/CronetHelper.kt
index 7493a17de..b66b1347f 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/CronetHelper.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/CronetHelper.kt
@@ -1,5 +1,8 @@
+@file:Keep
+
 package io.legado.app.lib.cronet
 
+import androidx.annotation.Keep
 import io.legado.app.constant.AppLog
 import io.legado.app.help.config.AppConfig
 import io.legado.app.help.http.okHttpClient
@@ -13,7 +16,6 @@ import org.chromium.net.UrlRequest
 import org.json.JSONObject
 import splitties.init.appCtx
 
-
 val cronetEngine: ExperimentalCronetEngine? by lazy {
     if (!AppConfig.isGooglePlay) {
         CronetLoader.preDownload()
diff --git a/app/src/app/java/io/legado/app/lib/cronet/CronetInterceptor.kt b/app/src/app/java/io/legado/app/lib/cronet/CronetInterceptor.kt
index 1d3c7076e..494e46674 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/CronetInterceptor.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/CronetInterceptor.kt
@@ -1,13 +1,14 @@
 package io.legado.app.lib.cronet
 
 import android.os.Build
+import androidx.annotation.Keep
 import io.legado.app.help.http.cookieJar
 import io.legado.app.utils.printOnDebug
 import okhttp3.*
 import okhttp3.internal.http.receiveHeaders
 import java.io.IOException
 
-
+@Keep
 @Suppress("unused")
 class CronetInterceptor : Interceptor {
     @Throws(IOException::class)
diff --git a/app/src/app/java/io/legado/app/lib/cronet/CronetLoader.kt b/app/src/app/java/io/legado/app/lib/cronet/CronetLoader.kt
index feebe84e1..c87442491 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/CronetLoader.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/CronetLoader.kt
@@ -5,6 +5,7 @@ import android.content.Context
 import android.content.pm.ApplicationInfo
 import android.os.Build
 import android.text.TextUtils
+import androidx.annotation.Keep
 import io.legado.app.BuildConfig
 import io.legado.app.help.config.AppConfig
 import io.legado.app.help.coroutine.Coroutine
@@ -23,7 +24,7 @@ import java.net.URL
 import java.security.MessageDigest
 import java.util.*
 
-
+@Keep
 object CronetLoader : CronetEngine.Builder.LibraryLoader(), CronetLoaderInterface {
     //https://storage.googleapis.com/chromium-cronet/android/92.0.4515.159/Release/cronet/libs/arm64-v8a/libcronet.92.0.4515.159.so
 
diff --git a/app/src/app/java/io/legado/app/lib/cronet/NewCallBack.kt b/app/src/app/java/io/legado/app/lib/cronet/NewCallBack.kt
index 67c518945..06929584b 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/NewCallBack.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/NewCallBack.kt
@@ -1,7 +1,7 @@
 package io.legado.app.lib.cronet
 
-
 import android.os.Build
+import androidx.annotation.Keep
 import androidx.annotation.RequiresApi
 import okhttp3.Call
 import okhttp3.Request
@@ -11,6 +11,7 @@ import java.io.IOException
 import java.util.concurrent.CompletableFuture
 import java.util.concurrent.TimeUnit
 
+@Keep
 @RequiresApi(api = Build.VERSION_CODES.N)
 class NewCallBack(originalRequest: Request, mCall: Call) : AbsCallBack(originalRequest, mCall) {
     private val responseFuture = CompletableFuture<Response>()
diff --git a/app/src/app/java/io/legado/app/lib/cronet/OldCallback.kt b/app/src/app/java/io/legado/app/lib/cronet/OldCallback.kt
index c39888403..9cfd277f4 100644
--- a/app/src/app/java/io/legado/app/lib/cronet/OldCallback.kt
+++ b/app/src/app/java/io/legado/app/lib/cronet/OldCallback.kt
@@ -1,12 +1,14 @@
 package io.legado.app.lib.cronet
 
 import android.os.ConditionVariable
+import androidx.annotation.Keep
 import okhttp3.Call
 import okhttp3.Request
 import okhttp3.Response
 import org.chromium.net.UrlRequest
 import java.io.IOException
 
+@Keep
 class OldCallback(originalRequest: Request, mCall: Call) : AbsCallBack(originalRequest, mCall) {
 
     private val mResponseCondition = ConditionVariable()