diff --git a/MobileLibrary/Android/SampleApps/TunneledWebView/app/build.gradle b/MobileLibrary/Android/SampleApps/TunneledWebView/app/build.gradle
index 573d3abef..62d433924 100644
--- a/MobileLibrary/Android/SampleApps/TunneledWebView/app/build.gradle
+++ b/MobileLibrary/Android/SampleApps/TunneledWebView/app/build.gradle
@@ -1,20 +1,20 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
     useLibrary 'org.apache.http.legacy'
 
 
     defaultConfig {
         applicationId "ca.psiphon.tunneledwebview"
         minSdkVersion 15
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
@@ -25,16 +25,12 @@ android {
 }
 
 repositories {
-    flatDir {
-        dirs 'libs'
-    }
     maven {
         url "https://raw.github.com/Psiphon-Labs/psiphon-tunnel-core-Android-library/master"
     }
 }
 
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
     testImplementation 'junit:junit:4.12'
     implementation 'androidx.appcompat:appcompat:1.0.0'
     // always specify exact library version in your real project to avoid non-deterministic builds
diff --git a/MobileLibrary/Android/SampleApps/TunneledWebView/app/src/main/java/ca/psiphon/tunneledwebview/MainActivity.java b/MobileLibrary/Android/SampleApps/TunneledWebView/app/src/main/java/ca/psiphon/tunneledwebview/MainActivity.java
index 728b8c58d..8acdfcee0 100644
--- a/MobileLibrary/Android/SampleApps/TunneledWebView/app/src/main/java/ca/psiphon/tunneledwebview/MainActivity.java
+++ b/MobileLibrary/Android/SampleApps/TunneledWebView/app/src/main/java/ca/psiphon/tunneledwebview/MainActivity.java
@@ -142,7 +142,7 @@ private void loadWebView() {
             public void run() {
                 WebViewProxySettings.setLocalProxy(
                         MainActivity.this, mLocalHttpProxyPort.get());
-                mWebView.loadUrl("https://freegeoip.app/");
+                mWebView.loadUrl("https://psip.me/");
             }
         });
     }
diff --git a/MobileLibrary/Android/SampleApps/TunneledWebView/build.gradle b/MobileLibrary/Android/SampleApps/TunneledWebView/build.gradle
index de39396f1..1779a2bc9 100644
--- a/MobileLibrary/Android/SampleApps/TunneledWebView/build.gradle
+++ b/MobileLibrary/Android/SampleApps/TunneledWebView/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
+        classpath 'com.android.tools.build:gradle:7.1.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/MobileLibrary/Android/SampleApps/TunneledWebView/gradle/wrapper/gradle-wrapper.properties b/MobileLibrary/Android/SampleApps/TunneledWebView/gradle/wrapper/gradle-wrapper.properties
index bf58df38f..8a2f8c2a0 100644
--- a/MobileLibrary/Android/SampleApps/TunneledWebView/gradle/wrapper/gradle-wrapper.properties
+++ b/MobileLibrary/Android/SampleApps/TunneledWebView/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-5.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-all.zip
diff --git a/MobileLibrary/Android/make.bash b/MobileLibrary/Android/make.bash
index ad2e724f1..5b27b1d20 100755
--- a/MobileLibrary/Android/make.bash
+++ b/MobileLibrary/Android/make.bash
@@ -119,7 +119,7 @@ fi
 
 cd -
 cd build-tmp/psi
-echo -e "-keep class psi.** { *; }\n"  >> proguard.txt
+echo -e "-keep class psi.** { *; }\n-keep class ca.psiphon.** { *; }\n"  >> proguard.txt
 rm -f ../../ca.psiphon.aar
 zip -r ../../ca.psiphon.aar ./
 cd -