diff --git a/src/serious_python/bin/package_command.dart b/src/serious_python/bin/package_command.dart
index 7b123d15..c6f3845a 100644
--- a/src/serious_python/bin/package_command.dart
+++ b/src/serious_python/bin/package_command.dart
@@ -434,7 +434,7 @@ class PackageCommand extends Command {
       stdout.writeln(
           "Creating app archive at ${dest.path} from a temp directory");
       final encoder = ZipFileEncoder();
-      encoder.zipDirectory(tempDir, filename: dest.path);
+      await encoder.zipDirectory(tempDir, filename: dest.path);
 
       // create hash file
       stdout.writeln("Writing app archive hash to ${dest.path}.hash");
diff --git a/src/serious_python/example/flask_example/android/build.gradle b/src/serious_python/example/flask_example/android/build.gradle
index f7eb7f63..2001ec6e 100644
--- a/src/serious_python/example/flask_example/android/build.gradle
+++ b/src/serious_python/example/flask_example/android/build.gradle
@@ -6,7 +6,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.0'
+        classpath 'com.android.tools.build:gradle:9.1.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/src/serious_python/example/run_example/android/gradle/wrapper/gradle-wrapper.properties b/src/serious_python/example/run_example/android/gradle/wrapper/gradle-wrapper.properties
index a10c8212..6f13bc89 100644
--- a/src/serious_python/example/run_example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/src/serious_python/example/run_example/android/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
\ No newline at end of file
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
\ No newline at end of file
diff --git a/src/serious_python/pubspec.yaml b/src/serious_python/pubspec.yaml
index ce367121..81720ea1 100644
--- a/src/serious_python/pubspec.yaml
+++ b/src/serious_python/pubspec.yaml
@@ -44,7 +44,7 @@ dependencies:
     path: ../serious_python_linux
 
   path_provider: ^2.1.3
-  archive: ^3.6.1
+  archive: ^4.0.7
   path: ^1.9.0
   args: ^2.5.0
   toml: ^0.15.0
@@ -57,4 +57,4 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
   plugin_platform_interface: ^2.1.6
-  flutter_lints: ^2.0.0
\ No newline at end of file
+  flutter_lints: ^2.0.0
diff --git a/src/serious_python_android/android/build.gradle b/src/serious_python_android/android/build.gradle
index 65eb1abb..48748825 100644
--- a/src/serious_python_android/android/build.gradle
+++ b/src/serious_python_android/android/build.gradle
@@ -11,7 +11,7 @@ buildscript {
 
     dependencies {
         // The Android Gradle Plugin knows how to build native code with the NDK.
-        classpath 'com.android.tools.build:gradle:7.3.0'
+        classpath 'com.android.tools.build:gradle:9.1.0'
         classpath 'de.undercouch:gradle-download-task:4.1.2'
     }
 }
diff --git a/src/serious_python_platform_interface/pubspec.yaml b/src/serious_python_platform_interface/pubspec.yaml
index 1823cc09..618d0ab0 100644
--- a/src/serious_python_platform_interface/pubspec.yaml
+++ b/src/serious_python_platform_interface/pubspec.yaml
@@ -13,7 +13,7 @@ dependencies:
     sdk: flutter
   plugin_platform_interface: ^2.1.8
   path_provider: ^2.1.3
-  archive: ^3.6.1
+  archive: ^4.0.7
   path: ^1.9.0
   
 dev_dependencies: