diff --git a/app/build.gradle b/app/build.gradle
index 77945f743..3fe8ca9be 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -17,7 +17,6 @@ def gitCommits = Integer.parseInt('git rev-list HEAD --count'.execute().text.tri
 
 android {
     compileSdk 33
-    buildToolsVersion "33.0.0"
     namespace 'io.legado.app'
     kotlinOptions {
         jvmTarget = "11"
@@ -92,16 +91,16 @@ android {
         }
     }
 
-    flavorDimensions "mode"
+    flavorDimensions.add("mode")
     productFlavors {
         app {
             dimension "mode"
-            manifestPlaceholders = [APP_CHANNEL_VALUE: "app"]
+            manifestPlaceholders.put("APP_CHANNEL_VALUE", "app")
         }
         google {
             dimension "mode"
             applicationId "io.legado.play"
-            manifestPlaceholders = [APP_CHANNEL_VALUE: "google"]
+            manifestPlaceholders.put("APP_CHANNEL_VALUE", "google")
         }
     }
     compileOptions {
diff --git a/epublib/build.gradle b/epublib/build.gradle
index d8bbddcca..5ac5e28c5 100644
--- a/epublib/build.gradle
+++ b/epublib/build.gradle
@@ -4,7 +4,6 @@ plugins {
 
 android {
     compileSdk 33
-    //buildToolsVersion '32.0.0'
     namespace 'me.ag2s.epublib'
     defaultConfig {
         minSdk 21