diff --git a/app/cronet-proguard-rules.pro b/app/cronet-proguard-rules.pro
index e69de29bb..f2737579a 100644
--- a/app/cronet-proguard-rules.pro
+++ b/app/cronet-proguard-rules.pro
@@ -0,0 +1,229 @@
+# -------- Config Path: base/android/proguard/chromium_code.flags --------
+# Copyright 2016 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Contains flags that can be safely shared with Cronet, and thus would be
+# appropriate for third-party apps to include.
+
+# Allow unused native methods to be removed, but prevent renaming on those that are kept.
+-keepclasseswithmembernames,includedescriptorclasses,allowaccessmodification class !cr_allowunused,** {
+  native <methods>;
+}
+
+# Use assumevalues block instead of assumenosideeffects block because Google3 proguard cannot parse
+# assumenosideeffects blocks which overwrite return value.
+# chromium_code.flags rather than remove_logging.flags so that it's included
+# in cronet.
+-assumevalues class org.chromium.base.Log {
+  static boolean isDebug() return false;
+}
+
+# Keep all CREATOR fields within Parcelable that are kept.
+-keepclassmembers class !cr_allowunused,org.chromium.** implements android.os.Parcelable {
+  public static *** CREATOR;
+}
+
+# Don't obfuscate Parcelables as they might be marshalled outside Chrome.
+# If we annotated all Parcelables that get put into Bundles other than
+# for saveInstanceState (e.g. PendingIntents), then we could actually keep the
+# names of just those ones. For now, we'll just keep them all.
+-keepnames,allowaccessmodification class !cr_allowunused,org.chromium.** implements android.os.Parcelable {}
+
+# Keep all enum values and valueOf methods. See
+# http://proguard.sourceforge.net/index.html#manual/examples.html
+# for the reason for this. Also, see http://crbug.com/248037.
+-keepclassmembers enum !cr_allowunused,org.chromium.** {
+    public static **[] values();
+}
+
+# -identifiernamestring doesn't keep the module impl around, we have to
+# explicitly keep it.
+-if @org.chromium.components.module_installer.builder.ModuleInterface interface *
+-keep,allowobfuscation,allowaccessmodification class !cr_allowunused,** extends <1> {
+  <init>();
+}
+
+# Required to remove fields until b/274802355 is resolved.
+-assumevalues class !cr_allowunused,** {
+  final org.chromium.base.ThreadUtils$ThreadChecker * return _NONNULL_;
+}
+
+# TODO(agrieve): Remove once we start to use Android U SDK.
+-dontwarn android.window.BackEvent
+-dontwarn android.window.OnBackAnimationCallback
+# -------- Config Path: build/android/chromium_annotations.flags --------
+# Copyright 2022 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Contains flags related to annotations in //build/android that can be safely
+# shared with Cronet, and thus would be appropriate for third-party apps to
+# include.
+
+# Keep all annotation related attributes that can affect runtime
+-keepattributes RuntimeVisible*Annotations
+-keepattributes AnnotationDefault
+
+# Keeps for class level annotations.
+-keep,allowaccessmodification @org.chromium.build.annotations.UsedByReflection class ** {}
+
+# Keeps for method level annotations.
+-keepclasseswithmembers,allowaccessmodification class ** {
+  @org.chromium.build.annotations.UsedByReflection <methods>;
+}
+-keepclasseswithmembers,allowaccessmodification class ** {
+  @org.chromium.build.annotations.UsedByReflection <fields>;
+}
+
+# Never inline classes, methods, or fields with this annotation, but allow
+# shrinking and obfuscation.
+# Relevant to fields when they are needed to store strong references to objects
+# that are held as weak references by native code.
+-if @org.chromium.build.annotations.DoNotInline class * {
+    *** *(...);
+}
+-keep,allowobfuscation,allowaccessmodification class <1> {
+    *** <2>(...);
+}
+-keepclassmembers,allowobfuscation,allowaccessmodification class * {
+   @org.chromium.build.annotations.DoNotInline <methods>;
+}
+-keepclassmembers,allowobfuscation,allowaccessmodification class * {
+   @org.chromium.build.annotations.DoNotInline <fields>;
+}
+
+-alwaysinline class * {
+    @org.chromium.build.annotations.AlwaysInline *;
+}
+
+# Keep all logs (Log.VERBOSE = 2). R8 does not allow setting to 0.
+-maximumremovedandroidloglevel 1 class ** {
+   @org.chromium.build.annotations.DoNotStripLogs <methods>;
+}
+-maximumremovedandroidloglevel 1 @org.chromium.build.annotations.DoNotStripLogs class ** {
+   <methods>;
+}
+
+# Never merge classes horizontally or vertically with this annotation.
+# Relevant to classes being used as a key in maps or sets.
+-keep,allowaccessmodification,allowobfuscation,allowshrinking @org.chromium.build.annotations.DoNotClassMerge class *
+
+# Mark members annotated with IdentifierNameString as identifier name strings
+-identifiernamestring class * {
+    @org.chromium.build.annotations.IdentifierNameString *;
+}
+# -------- Config Path: components/cronet/android/cronet_impl_common_proguard.cfg --------
+# Proguard config for apps that depend on cronet_impl_common_java.jar.
+
+# Used through reflection by the API code to figure out the version of the impl
+# code it's talking to.
+-keep public class org.chromium.net.impl.ImplVersion {
+  public *;
+}
+
+-dontwarn com.google.errorprone.annotations.DoNotMock
+# -------- Config Path: components/cronet/android/cronet_impl_native_proguard.cfg --------
+# Proguard config for apps that depend on cronet_impl_native_java.jar.
+
+# This constructor is called using the reflection from Cronet API (cronet_api.jar).
+-keep class org.chromium.net.impl.NativeCronetProvider {
+    public <init>(android.content.Context);
+}
+
+# While Chrome doesn't need to keep these with their version of R8, some cronet
+# users may be on other optimizers which still require the annotation to be
+# kept in order for the keep rules to work.
+-keep @interface org.chromium.build.annotations.DoNotInline
+-keep @interface org.chromium.build.annotations.UsedByReflection
+-keep @interface org.chromium.build.annotations.IdentifierNameString
+-keep @interface org.jni_zero.AccessedByNative
+-keep @interface org.jni_zero.CalledByNative
+-keep @interface org.jni_zero.CalledByNativeUnchecked
+
+# Suppress unnecessary warnings.
+-dontnote org.chromium.net.ProxyChangeListener$ProxyReceiver
+-dontnote org.chromium.net.AndroidKeyStore
+# Needs 'void setTextAppearance(int)' (API level 23).
+-dontwarn org.chromium.base.ApiCompatibilityUtils
+# Needs 'boolean onSearchRequested(android.view.SearchEvent)' (API level 23).
+-dontwarn org.chromium.base.WindowCallbackWrapper
+
+# Generated for chrome apk and not included into cronet.
+-dontwarn org.chromium.base.multidex.ChromiumMultiDexInstaller
+-dontwarn org.chromium.base.library_loader.LibraryLoader
+-dontwarn org.chromium.base.SysUtils
+-dontwarn org.chromium.build.NativeLibraries
+
+# Objects of this type are passed around by native code, but the class
+# is never used directly by native code. Since the class is not loaded, it does
+# not need to be preserved as an entry point.
+-dontnote org.chromium.net.UrlRequest$ResponseHeadersMap
+# https://android.googlesource.com/platform/sdk/+/marshmallow-mr1-release/files/proguard-android.txt#54
+-dontwarn android.support.**
+
+# This class should be explicitly kept to avoid failure if
+# class/merging/horizontal proguard optimization is enabled.
+-keep class org.chromium.base.CollectionUtil
+
+# Skip protobuf runtime check for isOnAndroidDevice().
+# A nice-to-have optimization shamelessly stolen from //third_party/protobuf/java/lite/proguard.pgcfg.
+-assumevalues class com.google.protobuf.Android {
+    static boolean ASSUME_ANDROID return true;
+}
+
+# See crbug.com/1440987. We must keep every native that we are manually
+# registering. If Cronet bumps its min-sdk past 21, we may be able to move to
+# automatic JNI registration.
+-keepclasseswithmembers,includedescriptorclasses,allowaccessmodification class org.chromium.**,J.N {
+  native <methods>;
+}
+
+# Protobuf builder uses reflection so make sure ProGuard leaves it alone. See
+# https://crbug.com/1395764.
+# Note that we can't simply use the rule from
+# //third_party/protobuf/java/lite/proguard.pgcfg, because some users who
+# consume our ProGuard rules do not want all their protos to be kept. Instead,
+# use a more specific rule that covers Chromium protos only.
+-keepclassmembers class org.chromium.** extends com.google.protobuf.GeneratedMessageLite {
+  <fields>;
+}
+# -------- Config Path: components/cronet/android/cronet_shared_proguard.cfg --------
+# Proguard config for apps that depend on cronet_shared_java.jar (which should
+# be all apps that depend on any part of Cronet)
+
+# Part of the Android System SDK, so ProGuard won't be able to resolve it if
+# running against the standard SDK.
+-dontwarn android.util.StatsEvent
+-dontwarn android.util.StatsEvent$*
+# There is also an undefined reference to android.util.StatsLog.write(), which
+# R8 appears to be fine with but other processors (e.g. internal Google
+# ProGuard) may not be. See b/315269496.
+-dontwarn android.util.StatsLog
+# -------- Config Path: third_party/androidx/androidx_annotations.flags --------
+# Copyright 2023 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+-keep @androidx.annotation.Keep class *
+-keepclasseswithmembers,allowaccessmodification class * {
+  @androidx.annotation.Keep <fields>;
+}
+-keepclasseswithmembers,allowaccessmodification class * {
+  @androidx.annotation.Keep <methods>;
+}
+# -------- Config Path: third_party/jni_zero/proguard.flags --------
+# Copyright 2023 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Keeps for method level annotations.
+-keepclasseswithmembers,allowaccessmodification class ** {
+  @org.jni_zero.AccessedByNative <fields>;
+}
+-keepclasseswithmembers,includedescriptorclasses,allowaccessmodification class ** {
+  @org.jni_zero.CalledByNative <methods>;
+}
+-keepclasseswithmembers,includedescriptorclasses,allowaccessmodification class ** {
+  @org.jni_zero.CalledByNativeUnchecked <methods>;
+}
diff --git a/app/cronetlib/cronet_api.jar b/app/cronetlib/cronet_api.jar
index 1ca80a6a0..0add8fd4a 100644
Binary files a/app/cronetlib/cronet_api.jar and b/app/cronetlib/cronet_api.jar differ
diff --git a/app/cronetlib/cronet_impl_common_java.jar b/app/cronetlib/cronet_impl_common_java.jar
index 73cd51d27..ecb4b2cee 100644
Binary files a/app/cronetlib/cronet_impl_common_java.jar and b/app/cronetlib/cronet_impl_common_java.jar differ
diff --git a/app/cronetlib/cronet_impl_native_java.jar b/app/cronetlib/cronet_impl_native_java.jar
index ea5a15981..842cdea6f 100644
Binary files a/app/cronetlib/cronet_impl_native_java.jar and b/app/cronetlib/cronet_impl_native_java.jar differ
diff --git a/app/cronetlib/cronet_impl_platform_java.jar b/app/cronetlib/cronet_impl_platform_java.jar
index 39fa6429a..05468748d 100644
Binary files a/app/cronetlib/cronet_impl_platform_java.jar and b/app/cronetlib/cronet_impl_platform_java.jar differ
diff --git a/app/cronetlib/cronet_shared_java.jar b/app/cronetlib/cronet_shared_java.jar
new file mode 100644
index 000000000..2700521b4
Binary files /dev/null and b/app/cronetlib/cronet_shared_java.jar differ
diff --git a/app/src/main/assets/cronet.json b/app/src/main/assets/cronet.json
index bcaf97af5..f62e13c7b 100644
--- a/app/src/main/assets/cronet.json
+++ b/app/src/main/assets/cronet.json
@@ -1 +1 @@
-{"x86":"7006fb1b629c4de7f7dd10c9fe510f8e","x86_64":"dbc5c2458aeb3cc80f82bc6fb4a3e67c","arm64-v8a":"8d2ae49ae980d5b5a7f20264efed7684","armeabi-v7a":"1021694dfc1d02585d412525fbb9519b","version":"121.0.6167.180"}
\ No newline at end of file
+{"arm64-v8a":"16565826aa947cca0d1992c16caca3ae","armeabi-v7a":"63d169a1d237e336269d0f91c2e2e0d1","x86":"fdebbd3f2e85f8c463e5c728ec9c307d","x86_64":"09641910060087e7fb50e14553a5838c","version":"123.0.6312.40"}
\ No newline at end of file
diff --git a/app/src/main/assets/updateLog.md b/app/src/main/assets/updateLog.md
index 797991f66..89084ed14 100644
--- a/app/src/main/assets/updateLog.md
+++ b/app/src/main/assets/updateLog.md
@@ -13,6 +13,7 @@
 * 漫画源看书显示乱码，**阅读与其他软件的源并不通用**，请导入阅读的支持的漫画源！
 
 **2024/02/27**
+* 更新cronet: 123.0.6312.40
 
 * 添加备用URL导出
 * 更新书源制作的帮助文档链接
diff --git a/gradle.properties b/gradle.properties
index 9add1e50a..9faf21a99 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -42,7 +42,7 @@ android.defaults.buildfeatures.shaders=false
 # and none from the library's dependencies, thereby reducing the size of the R class for that library.
 android.nonTransitiveRClass=true
 # https://chromiumdash.appspot.com/releases?platform=Android
-CronetVersion=121.0.6167.180
-CronetMainVersion=121.0.0.0
+CronetVersion=123.0.6312.40
+CronetMainVersion=123.0.0.0
 android.injected.testOnly=false
 android.nonFinalResIds=true
\ No newline at end of file