diff --git a/build.gradle b/build.gradle
index 37c36224..81dcb03f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,10 +1,10 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.nav_version = "2.6.0" // require SDK 34 from 2.7.0
+    ext.nav_version = "2.9.0" // require SDK 34 from 2.7.0
     ext.hilt_version = "2.56.2"
     ext.coroutines_version = "1.10.2"
-    ext.lifecycle_version = "2.6.2"
+    ext.lifecycle_version = "2.9.0"
     ext.text_recognition_version = "16.0.1"
     ext.kotpref_version = "2.13.2"
     ext.retrofit2_version = "3.0.0"
diff --git a/main/build.gradle b/main/build.gradle
index 62228632..ad2ea37c 100644
--- a/main/build.gradle
+++ b/main/build.gradle
@@ -23,12 +23,12 @@ task ensureFiles {
 }
 
 android {
-    compileSdk 34
+    compileSdk 35
 
     defaultConfig {
         applicationId "tw.firemaples.onscreenocr"
         minSdkVersion 21
-        targetSdkVersion 34
+        targetSdkVersion 35
         versionCode 124
         versionName "4.0.6"
 
@@ -111,7 +111,7 @@ dependencies {
 
     implementation fileTree(include: ['*.jar', '*.aar'], dir: 'libs')
 
-    implementation 'androidx.core:core-ktx:1.10.1'
+    implementation 'androidx.core:core-ktx:1.16.0'
     implementation 'androidx.appcompat:appcompat:1.7.0'
     implementation 'com.google.android.material:material:1.12.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.2.1'
@@ -145,10 +145,10 @@ dependencies {
     androidTestImplementation "androidx.navigation:navigation-testing:$nav_version"
 
     // required to avoid crash on Android 12 API 31
-    implementation 'androidx.work:work-runtime-ktx:2.8.1'
+    implementation 'androidx.work:work-runtime-ktx:2.10.1'
 
     // Compose
-    def composeBom = platform('androidx.compose:compose-bom:2024.12.01')
+    def composeBom = platform('androidx.compose:compose-bom:2025.05.00')
     implementation composeBom
     androidTestImplementation composeBom
     // Material Design 3
@@ -239,7 +239,7 @@ dependencies {
 //    implementation 'com.mopub.mediation:adcolony:4.5.0.1'
 
     // Admob
-    implementation 'com.google.android.gms:play-services-ads:22.6.0'
+    implementation 'com.google.android.gms:play-services-ads:23.6.0'
     // Facebook Ad network
     implementation 'com.google.ads.mediation:facebook:6.19.0.0'
     // Adcolony Ad network
diff --git a/main/proguard-rules.pro b/main/proguard-rules.pro
index d220f7b1..0ada610a 100644
--- a/main/proguard-rules.pro
+++ b/main/proguard-rules.pro
@@ -74,8 +74,3 @@
 -if interface * { @retrofit2.http.* public *** *(...); }
 -keep,allowoptimization,allowshrinking,allowobfuscation class <3>
 ##### Proguard2 End
-
-##### Proguard R8
--dontwarn android.media.LoudnessCodecController$OnLoudnessCodecUpdateListener
--dontwarn android.media.LoudnessCodecController
-#####
diff --git a/main/src/main/java/tw/firemaples/onscreenocr/utils/BitmapCache.kt b/main/src/main/java/tw/firemaples/onscreenocr/utils/BitmapCache.kt
index 7f8d949a..2ee33a5b 100644
--- a/main/src/main/java/tw/firemaples/onscreenocr/utils/BitmapCache.kt
+++ b/main/src/main/java/tw/firemaples/onscreenocr/utils/BitmapCache.kt
@@ -83,7 +83,7 @@ object BitmapCache {
             return false
         }
 
-        val targetConfig = config ?: this.config
+        val targetConfig = config ?: this.config ?: return false
         val byteCount = width * height * targetConfig.getBytesPerPixel()
         return byteCount <= this.allocationByteCount
     }