diff --git a/app/build.gradle b/app/build.gradle
index 29dc5035c..25ac750a4 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,8 +27,8 @@ android {
         applicationId "io.github.nekoinverter.ehviewer"
         minSdkVersion 23
         targetSdkVersion 30
-        versionCode 145
-        versionName "1.7.23"
+        versionCode 146
+        versionName "1.7.23.1"
         resConfigs "zh", "zh-rCN", "zh-rHK", "zh-rTW",
                 "es", "ja", "ko", "fr", "de", "th"
         testOptions.unitTests.includeAndroidResources = true
diff --git a/build.gradle b/build.gradle
index 72d4b086d..7ec1f9c6e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ buildscript {
         maven { url "https://storage.googleapis.com/r8-releases/raw" }
     }
     dependencies {
-        classpath 'com.android.tools:r8:3.0.27-dev'
+        classpath 'com.android.tools:r8:3.0.28-dev'
         classpath 'com.android.tools.build:gradle:7.0.0-alpha11'
 
         // NOTE: Do not place your application dependencies here; they belong