diff --git a/.travis.yml b/.travis.yml
index 4be7cf06..b1b7beb6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,14 +4,14 @@ jdk:
 android:
   components:
     - build-tools-30.0.3
-    - android-30
+    - android-29
 
 env:
   global:
    - secure: "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"
 
 before_install:
-  - yes | sdkmanager "platforms;android-30"
+  - yes | sdkmanager "platforms;android-29"
   - echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-
 
 addons:
diff --git a/app/build.gradle b/app/build.gradle
index a1a45ff2..55c96d40 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,14 +15,14 @@ sonarqube {
 
 android {
     viewBinding.enabled = true
-    compileSdkVersion 30
+    compileSdkVersion 29
     buildToolsVersion '30.0.3'
 
     defaultConfig {
         minSdkVersion 14
-        targetSdkVersion 30
-        versionCode 62
-        versionName "2.4.0"
+        targetSdkVersion 29
+        versionCode 63
+        versionName "2.4.1"
         applicationId "com.aaronjwood.portauthority"
         setProperty("archivesBaseName", "PortAuthority-$versionName")
     }
diff --git a/app/src/main/java/com/aaronjwood/portauthority/network/Wireless.java b/app/src/main/java/com/aaronjwood/portauthority/network/Wireless.java
index 677f93eb..b6178ed4 100644
--- a/app/src/main/java/com/aaronjwood/portauthority/network/Wireless.java
+++ b/app/src/main/java/com/aaronjwood/portauthority/network/Wireless.java
@@ -61,8 +61,8 @@ public String getMacAddress() throws UnknownHostException, SocketException, NoWi
             throw new NoWifiInterface();
         }
 
+        // TODO: address this for Android 11 https://developer.android.com/training/articles/user-data-ids#mac-11-plus
         byte[] mac = iface.getHardwareAddress();
-
         StringBuilder buf = new StringBuilder();
         for (byte aMac : mac) {
             buf.append(String.format("%02x:", aMac));