diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eb5b3711..49a4a1b3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -49,11 +49,10 @@ jobs:
         # If using the github runner 'macos-10.15'
         # $VM_ASSETS/select-xamarin-sdk-v2.sh --mono=6.12 --android=11.2
 
-    - name: Switch to JDK-8
-      if: ${{ false }} # Not needed, we stay with the default installed JDK
+    - name: Switch to JDK-11
       uses: actions/setup-java@v3
       with:
-        java-version: '8'
+        java-version: '11'
         distribution: 'temurin'
 
     - name: Display java version
@@ -177,11 +176,10 @@ jobs:
         sudo apt install -y ./xamarin.android-oss/*.deb &&
         echo "$HOME/xamarin.android-oss/bin/Release/bin" >> $GITHUB_PATH
 
-    - name: Switch to JDK-8
-      if: ${{ false }} # Not needed, we stay with the default installed JDK
+    - name: Switch to JDK-11
       uses: actions/setup-java@v3
       with:
-        java-version: '8'
+        java-version: '11'
         distribution: 'temurin'
 
     - name: Display java version
@@ -279,6 +277,15 @@ jobs:
       # If we want to also have nmake, use this instead
       #uses: ilammy/msvc-dev-cmd@v1
 
+    - name: Switch to JDK-11
+      uses: actions/setup-java@v3
+      with:
+        java-version: '11'
+        distribution: 'temurin'
+
+    - name: Display java version
+      run: java -version
+
     # Some components of Keepass2Android currently target android API 26 which are not available on the runner
     - name: Download android-26 API
       shell: cmd
diff --git a/src/java/JavaFileStorage/app/build.gradle b/src/java/JavaFileStorage/app/build.gradle
index a1f9883d..b00f006f 100644
--- a/src/java/JavaFileStorage/app/build.gradle
+++ b/src/java/JavaFileStorage/app/build.gradle
@@ -1,8 +1,11 @@
 apply plugin: 'com.android.library'
 
 android {
+
+    namespace 'keepass2android.javafilestorage'
+
     compileSdkVersion 28
-    buildToolsVersion '28.0.3'
+
     defaultConfig {
         minSdkVersion 15
         targetSdkVersion 28
@@ -27,27 +30,27 @@ NOTE: If you change dependencies here, don't forget to update the jar files in J
 
 dependencies {
 
-    compile 'com.squareup.okhttp3:okhttp:4.10.0-RC1'
-    compile 'com.burgstaller:okhttp-digest:2.5'
+    implementation 'com.squareup.okhttp3:okhttp:4.10.0-RC1'
+    implementation 'com.burgstaller:okhttp-digest:2.5'
 
-    compile 'com.google.http-client:google-http-client-gson:1.20.0'
-    compile('com.google.api-client:google-api-client-android:1.30.5') {
+    implementation 'com.google.http-client:google-http-client-gson:1.20.0'
+    implementation('com.google.api-client:google-api-client-android:1.30.5') {
         exclude group: 'com.google.android.google-play-services'
     }
-    compile 'com.google.apis:google-api-services-drive:v2-rev102-1.16.0-rc'
-    compile 'com.dropbox.core:dropbox-core-sdk:4.0.0'
+    implementation 'com.google.apis:google-api-services-drive:v2-rev102-1.16.0-rc'
+    implementation 'com.dropbox.core:dropbox-core-sdk:4.0.0'
     implementation 'com.google.api-client:google-api-client:1.30.5'
     implementation 'com.google.api-client:google-api-client-android:1.30.5'
 
     implementation 'com.google.android.gms:play-services-auth:20.4.0'
     //onedrive:
-    compile('com.onedrive.sdk:onedrive-sdk-android:1.2.0') {
+    implementation('com.onedrive.sdk:onedrive-sdk-android:1.2.0') {
         transitive = false
     }
-    compile 'com.pcloud.sdk:java-core:1.2.0'
-    compile 'com.pcloud.sdk:android:1.2.0'
-    compile 'com.google.code.gson:gson:2.8.6'
-    compile 'com.microsoft.services.msa:msa-auth:0.8.6'
-    compile 'com.microsoft.aad:adal:1.14.0'
+    implementation 'com.pcloud.sdk:java-core:1.2.0'
+    implementation 'com.pcloud.sdk:android:1.2.0'
+    implementation 'com.google.code.gson:gson:2.8.6'
+    implementation 'com.microsoft.services.msa:msa-auth:0.8.6'
+    implementation 'com.microsoft.aad:adal:1.14.0'
 
 }
diff --git a/src/java/JavaFileStorage/app/src/main/AndroidManifest.xml b/src/java/JavaFileStorage/app/src/main/AndroidManifest.xml
index cbb0dce1..ed3c4021 100644
--- a/src/java/JavaFileStorage/app/src/main/AndroidManifest.xml
+++ b/src/java/JavaFileStorage/app/src/main/AndroidManifest.xml
@@ -1,13 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    package="keepass2android.javafilestorage"
     android:versionCode="1"
     android:versionName="1.0">
 
-    <uses-sdk
-        android:targetSdkVersion="14" />
-
     <uses-permission android:name="android.permission.GET_ACCOUNTS" />
 
 
@@ -17,4 +13,4 @@
             android:label="Keepass2Android"></activity>
     </application>
 
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/src/java/JavaFileStorage/build.gradle b/src/java/JavaFileStorage/build.gradle
index 512a28ae..aaa5b130 100644
--- a/src/java/JavaFileStorage/build.gradle
+++ b/src/java/JavaFileStorage/build.gradle
@@ -1,20 +1,19 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
     repositories {
+        google()
+        mavenCentral()
         jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.2'
+        classpath "com.android.tools.build:gradle:7.4.0"
     }
 }
 
 allprojects {
     repositories {
+        google()
+        mavenCentral()
         jcenter()
-		google()
     }
 }
diff --git a/src/java/JavaFileStorage/gradle/wrapper/gradle-wrapper.properties b/src/java/JavaFileStorage/gradle/wrapper/gradle-wrapper.properties
index 89f68a2e..416fba2d 100644
--- a/src/java/JavaFileStorage/gradle/wrapper/gradle-wrapper.properties
+++ b/src/java/JavaFileStorage/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
diff --git a/src/java/JavaFileStorageTest-AS/app/build.gradle b/src/java/JavaFileStorageTest-AS/app/build.gradle
index 1c32996a..8a8fb76a 100644
--- a/src/java/JavaFileStorageTest-AS/app/build.gradle
+++ b/src/java/JavaFileStorageTest-AS/app/build.gradle
@@ -1,13 +1,14 @@
 apply plugin: 'com.android.application'
 
 android {
+    namespace "com.crocoapps.javafilestoragetest2"
+
     compileSdkVersion 28
-    buildToolsVersion '28.0.3'
 
     defaultConfig {
         applicationId "com.crocoapps.javafilestoragetest2"
         minSdkVersion 21
-        targetSdkVersion 28
+        targetSdkVersion 31
         versionCode 1
         versionName "1.0"
         multiDexEnabled true
@@ -31,10 +32,11 @@ android {
 //apply plugin: 'com.getkeepsafe.dexcount'
 
 dependencies {
-    compile project(':android-filechooser')
-    compile project(':JavaFileStorage')
+    implementation project(':android-filechooser')
+    implementation project(':JavaFileStorage')
+    implementation "androidx.annotation:annotation:1.5.0"
 }
 
 configurations {
-    compile.exclude group: "org.apache.httpcomponents", module: "httpclient"
+    implementation.exclude group: "org.apache.httpcomponents", module: "httpclient"
 }
diff --git a/src/java/JavaFileStorageTest-AS/app/src/main/AndroidManifest.xml b/src/java/JavaFileStorageTest-AS/app/src/main/AndroidManifest.xml
index 08a9d9f6..bbc22be0 100644
--- a/src/java/JavaFileStorageTest-AS/app/src/main/AndroidManifest.xml
+++ b/src/java/JavaFileStorageTest-AS/app/src/main/AndroidManifest.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    package="com.crocoapps.javafilestoragetest2">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <application
         android:allowBackup="true"
@@ -9,7 +8,8 @@
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name="com.crocoapps.javafilestoragetest2.MainActivity">
+        <activity android:name="com.crocoapps.javafilestoragetest2.MainActivity"
+                  android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -49,6 +49,7 @@
         </activity>
         <activity
             android:name="com.dropbox.core.android.AuthActivity"
+            android:exported="true"
             android:configChanges="orientation|keyboard"
             android:launchMode="singleTask" >
             <intent-filter>
@@ -63,7 +64,8 @@
         </activity>
 
         <activity
-            android:name="com.microsoft.identity.client.BrowserTabActivity">
+            android:name="com.microsoft.identity.client.BrowserTabActivity"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
@@ -86,4 +88,4 @@
 
 
 
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/src/java/JavaFileStorageTest-AS/build.gradle b/src/java/JavaFileStorageTest-AS/build.gradle
index d80f8739..f6602f67 100644
--- a/src/java/JavaFileStorageTest-AS/build.gradle
+++ b/src/java/JavaFileStorageTest-AS/build.gradle
@@ -2,14 +2,12 @@
 
 buildscript {
     repositories {
+        google()
+        mavenCentral()
         jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.2'
+        classpath "com.android.tools.build:gradle:7.4.0"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -20,8 +18,9 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter()
         google()
+        mavenCentral()
+        jcenter()
     }
 }
 
diff --git a/src/java/JavaFileStorageTest-AS/gradle/wrapper/gradle-wrapper.properties b/src/java/JavaFileStorageTest-AS/gradle/wrapper/gradle-wrapper.properties
index 47e69a51..9009fb73 100644
--- a/src/java/JavaFileStorageTest-AS/gradle/wrapper/gradle-wrapper.properties
+++ b/src/java/JavaFileStorageTest-AS/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
diff --git a/src/java/KP2AKdbLibrary/app/build.gradle b/src/java/KP2AKdbLibrary/app/build.gradle
index d8bb2f94..588d55ef 100644
--- a/src/java/KP2AKdbLibrary/app/build.gradle
+++ b/src/java/KP2AKdbLibrary/app/build.gradle
@@ -1,8 +1,10 @@
 apply plugin: 'com.android.library'
 
 android {
+
+    namespace 'keepass2android.kp2akeytransform'
+
     compileSdkVersion 23
-    buildToolsVersion '28.0.3'
 
     defaultConfig {
         ndk.abiFilters 'armeabi-v7a','arm64-v8a','x86','x86_64'
diff --git a/src/java/KP2AKdbLibrary/app/src/main/AndroidManifest.xml b/src/java/KP2AKdbLibrary/app/src/main/AndroidManifest.xml
index 1b4134bc..2e05240f 100644
--- a/src/java/KP2AKdbLibrary/app/src/main/AndroidManifest.xml
+++ b/src/java/KP2AKdbLibrary/app/src/main/AndroidManifest.xml
@@ -1,5 +1,4 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="keepass2android.kp2akeytransform"
     android:versionCode="1"
     android:versionName="1.0" >
 
@@ -7,4 +6,4 @@
     <application>
     </application>
 
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/src/java/KP2AKdbLibrary/build.gradle b/src/java/KP2AKdbLibrary/build.gradle
index 660bcc5c..51e333e4 100644
--- a/src/java/KP2AKdbLibrary/build.gradle
+++ b/src/java/KP2AKdbLibrary/build.gradle
@@ -1,25 +1,17 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
     repositories {
-        jcenter()
         google()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath "com.android.tools.build:gradle:7.4.0"
     }
 }
 
 allprojects {
     repositories {
-        jcenter()
         google()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        mavenCentral()
     }
 }
diff --git a/src/java/KP2AKdbLibrary/gradle/wrapper/gradle-wrapper.properties b/src/java/KP2AKdbLibrary/gradle/wrapper/gradle-wrapper.properties
index 71a44b01..37a1745a 100644
--- a/src/java/KP2AKdbLibrary/gradle/wrapper/gradle-wrapper.properties
+++ b/src/java/KP2AKdbLibrary/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
diff --git a/src/java/KP2ASoftkeyboard_AS/app/build.gradle b/src/java/KP2ASoftkeyboard_AS/app/build.gradle
index 128926d5..76d26811 100644
--- a/src/java/KP2ASoftkeyboard_AS/app/build.gradle
+++ b/src/java/KP2ASoftkeyboard_AS/app/build.gradle
@@ -1,7 +1,9 @@
 apply plugin: 'com.android.library'
 android {
+
+    namespace 'keepass2android.softkeyboard'
+
     compileSdkVersion 23
-    buildToolsVersion '28.0.3'
 
     defaultConfig {
         minSdkVersion 18
diff --git a/src/java/KP2ASoftkeyboard_AS/app/src/main/AndroidManifest.xml b/src/java/KP2ASoftkeyboard_AS/app/src/main/AndroidManifest.xml
index dc35604c..6e672a9b 100644
--- a/src/java/KP2ASoftkeyboard_AS/app/src/main/AndroidManifest.xml
+++ b/src/java/KP2ASoftkeyboard_AS/app/src/main/AndroidManifest.xml
@@ -1,8 +1,6 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-        package="keepass2android.softkeyboard">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-permission android:name="android.permission.VIBRATE"/>
-    <uses-sdk android:targetSdkVersion="14"/>
 
     <application
             android:killAfterRestore="false">
diff --git a/src/java/KP2ASoftkeyboard_AS/build.gradle b/src/java/KP2ASoftkeyboard_AS/build.gradle
index b37a7089..51e333e4 100644
--- a/src/java/KP2ASoftkeyboard_AS/build.gradle
+++ b/src/java/KP2ASoftkeyboard_AS/build.gradle
@@ -1,24 +1,17 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
     repositories {
-        jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        google()
+        mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.0.1"
+        classpath "com.android.tools.build:gradle:7.4.0"
     }
 }
 
 allprojects {
     repositories {
         google()
-        jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        mavenCentral()
     }
 }
diff --git a/src/java/KP2ASoftkeyboard_AS/gradle/wrapper/gradle-wrapper.properties b/src/java/KP2ASoftkeyboard_AS/gradle/wrapper/gradle-wrapper.properties
index 1efccb2f..da83b7b9 100644
--- a/src/java/KP2ASoftkeyboard_AS/gradle/wrapper/gradle-wrapper.properties
+++ b/src/java/KP2ASoftkeyboard_AS/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
diff --git a/src/java/Keepass2AndroidPluginSDK2/app/build.gradle b/src/java/Keepass2AndroidPluginSDK2/app/build.gradle
index 72f51720..6bdf18de 100644
--- a/src/java/Keepass2AndroidPluginSDK2/app/build.gradle
+++ b/src/java/Keepass2AndroidPluginSDK2/app/build.gradle
@@ -1,7 +1,9 @@
 apply plugin: 'com.android.library'
 android {
+
+    namespace 'keepass2android.pluginsdk'
+
     compileSdkVersion 23
-    buildToolsVersion '28.0.3'
 
     defaultConfig {
         minSdkVersion 8
diff --git a/src/java/Keepass2AndroidPluginSDK2/app/src/main/AndroidManifest.xml b/src/java/Keepass2AndroidPluginSDK2/app/src/main/AndroidManifest.xml
index b129b998..402263c5 100644
--- a/src/java/Keepass2AndroidPluginSDK2/app/src/main/AndroidManifest.xml
+++ b/src/java/Keepass2AndroidPluginSDK2/app/src/main/AndroidManifest.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="keepass2android.pluginsdk"
     android:versionCode="1"
     android:versionName="1.0" >
 
diff --git a/src/java/Keepass2AndroidPluginSDK2/build.gradle b/src/java/Keepass2AndroidPluginSDK2/build.gradle
index 9ec67506..f1db4422 100644
--- a/src/java/Keepass2AndroidPluginSDK2/build.gradle
+++ b/src/java/Keepass2AndroidPluginSDK2/build.gradle
@@ -2,14 +2,11 @@
 
 buildscript {
     repositories {
-        jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        google()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath "com.android.tools.build:gradle:7.4.0"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -20,8 +17,8 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter()
         google()
+        mavenCentral()
     }
 }
 
diff --git a/src/java/Keepass2AndroidPluginSDK2/gradle/wrapper/gradle-wrapper.properties b/src/java/Keepass2AndroidPluginSDK2/gradle/wrapper/gradle-wrapper.properties
index e4c40348..87321f86 100644
--- a/src/java/Keepass2AndroidPluginSDK2/gradle/wrapper/gradle-wrapper.properties
+++ b/src/java/Keepass2AndroidPluginSDK2/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
diff --git a/src/java/PluginQR/app/build.gradle b/src/java/PluginQR/app/build.gradle
index af91bc50..c9fa19e6 100644
--- a/src/java/PluginQR/app/build.gradle
+++ b/src/java/PluginQR/app/build.gradle
@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
+    namespace 'keepass2android.plugin.qr'
     compileSdkVersion 26
-    buildToolsVersion '28.0.3'
 
     defaultConfig {
         applicationId "keepass2android.plugin.qr"
         minSdkVersion 14
-        targetSdkVersion 19
+        targetSdkVersion 31
         versionCode 3
         versionName "1.0.2"
     }
@@ -32,6 +32,6 @@ android {
 }
 
 dependencies {
-    compile project(':Keepass2AndroidPluginSDK2')
-    compile 'com.google.zxing:core:2.3.0'
+    implementation project(':Keepass2AndroidPluginSDK2')
+    implementation 'com.google.zxing:core:2.3.0'
 }
diff --git a/src/java/PluginQR/app/src/main/AndroidManifest.xml b/src/java/PluginQR/app/src/main/AndroidManifest.xml
index 046a18f7..35fd3315 100644
--- a/src/java/PluginQR/app/src/main/AndroidManifest.xml
+++ b/src/java/PluginQR/app/src/main/AndroidManifest.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="keepass2android.plugin.qr" >
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     
     <uses-permission android:name="android.permission.CAMERA"/>
      <uses-permission
@@ -20,6 +19,7 @@
         android:theme="@style/AppTheme" >
         <activity
             android:name="keepass2android.plugin.qr.QRActivity"
+            android:exported="true"
             android:label="@string/title_activity_qr" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -47,6 +47,7 @@
 
         <activity
             android:name="keepass2android.plugin.qr.MainActivity"
+            android:exported="true"
             android:label="@string/app_name" 
             >
             <intent-filter>
diff --git a/src/java/PluginQR/build.gradle b/src/java/PluginQR/build.gradle
index f86f2fb5..c7db2bab 100644
--- a/src/java/PluginQR/build.gradle
+++ b/src/java/PluginQR/build.gradle
@@ -1,19 +1,17 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
     repositories {
-        jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        google()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.2'
+        classpath "com.android.tools.build:gradle:7.4.0"
     }
 }
 allprojects {
     repositories {
-        jcenter()
+        google()
+        mavenCentral()
     }
 }
 
diff --git a/src/java/PluginQR/gradle/wrapper/gradle-wrapper.properties b/src/java/PluginQR/gradle/wrapper/gradle-wrapper.properties
index 47e69a51..9009fb73 100644
--- a/src/java/PluginQR/gradle/wrapper/gradle-wrapper.properties
+++ b/src/java/PluginQR/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
diff --git a/src/java/android-filechooser-AS/app/build.gradle b/src/java/android-filechooser-AS/app/build.gradle
index 76a4ee1d..b460cd56 100644
--- a/src/java/android-filechooser-AS/app/build.gradle
+++ b/src/java/android-filechooser-AS/app/build.gradle
@@ -1,8 +1,10 @@
 apply plugin: 'com.android.library'
 
 android {
+
+    namespace 'group.pals.android.lib.ui.filechooser'
+
     compileSdkVersion 28
-    buildToolsVersion '28.0.3'
 
     defaultConfig {
         minSdkVersion 16
@@ -23,5 +25,5 @@ android {
 }
 
 dependencies {
-    compile 'androidx.legacy:legacy-support-v4:1.0.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
 }
diff --git a/src/java/android-filechooser-AS/app/src/main/AndroidManifest.xml b/src/java/android-filechooser-AS/app/src/main/AndroidManifest.xml
index b9739a84..91a1549f 100644
--- a/src/java/android-filechooser-AS/app/src/main/AndroidManifest.xml
+++ b/src/java/android-filechooser-AS/app/src/main/AndroidManifest.xml
@@ -6,8 +6,7 @@
     permission.
 -->
 
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="group.pals.android.lib.ui.filechooser" >
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/src/java/android-filechooser-AS/build.gradle b/src/java/android-filechooser-AS/build.gradle
index d80f8739..f1db4422 100644
--- a/src/java/android-filechooser-AS/build.gradle
+++ b/src/java/android-filechooser-AS/build.gradle
@@ -2,14 +2,11 @@
 
 buildscript {
     repositories {
-        jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        google()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.2'
+        classpath "com.android.tools.build:gradle:7.4.0"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -20,8 +17,8 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter()
         google()
+        mavenCentral()
     }
 }
 
diff --git a/src/java/android-filechooser-AS/gradle.properties b/src/java/android-filechooser-AS/gradle.properties
index 0bb15d79..57d1a3df 100644
--- a/src/java/android-filechooser-AS/gradle.properties
+++ b/src/java/android-filechooser-AS/gradle.properties
@@ -1 +1,2 @@
-org.gradle.jvmargs=-Xmx1024m
\ No newline at end of file
+org.gradle.jvmargs=-Xmx1024m
+android.useAndroidX=true
diff --git a/src/java/android-filechooser-AS/gradle/wrapper/gradle-wrapper.properties b/src/java/android-filechooser-AS/gradle/wrapper/gradle-wrapper.properties
index 2343bebf..de600804 100644
--- a/src/java/android-filechooser-AS/gradle/wrapper/gradle-wrapper.properties
+++ b/src/java/android-filechooser-AS/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
diff --git a/src/java/android-filechooser-AS/gradlew b/src/java/android-filechooser-AS/gradlew
old mode 100644
new mode 100755