diff --git a/build.gradle b/build.gradle
index f6f27757..539c6bb8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -57,7 +57,7 @@ def execResult(...args) {
     return stdout.toString().trim()
 }
 
-def gmsVersion = "20.33.15"
+def gmsVersion = "20.39.15"
 def gmsVersionCode = Integer.parseInt(gmsVersion.replaceAll('\\.', ''))
 def gitVersionBase = execResult('git', 'describe', '--tags', '--abbrev=0', '--match=v[0-9]*').substring(1)
 def gitCommitCount = Integer.parseInt(execResult('git', 'rev-list', '--count', "v$gitVersionBase..HEAD"))
diff --git a/play-services-basement/src/main/java/org/microg/gms/common/Constants.java b/play-services-basement/src/main/java/org/microg/gms/common/Constants.java
index 67222fc4..0fd0cbd1 100644
--- a/play-services-basement/src/main/java/org/microg/gms/common/Constants.java
+++ b/play-services-basement/src/main/java/org/microg/gms/common/Constants.java
@@ -17,7 +17,7 @@
 package org.microg.gms.common;
 
 public class Constants {
-    public static final int MAX_REFERENCE_VERSION = 202414 * 1000;
+    public static final int MAX_REFERENCE_VERSION = 203915 * 1000;
     public static final String GMS_PACKAGE_NAME = "com.google.android.gms";
     public static final String GSF_PACKAGE_NAME = "com.google.android.gsf";
     public static final String GMS_PACKAGE_SIGNATURE_SHA1 = "38918a453d07199354f8b19af05ec6562ced5788";
diff --git a/play-services-core/src/main/java/org/microg/gms/ui/AboutFragment.java b/play-services-core/src/main/java/org/microg/gms/ui/AboutFragment.java
index 0e863358..cfdf2881 100644
--- a/play-services-core/src/main/java/org/microg/gms/ui/AboutFragment.java
+++ b/play-services-core/src/main/java/org/microg/gms/ui/AboutFragment.java
@@ -29,7 +29,7 @@ public class AboutFragment extends AbstractAboutFragment {
 
     @Override
     protected void collectLibraries(List<AbstractAboutFragment.Library> libraries) {
-        if (BuildConfig.FLAVOR.contains("mapbox")) {
+        if (BuildConfig.FLAVOR.toLowerCase().contains("mapbox")) {
             libraries.add(new AbstractAboutFragment.Library("com.mapbox.mapboxsdk", "Mapbox Maps SDK for Android", "Three-Clause BSD, Mapbox"));
         } else {
             libraries.add(new AbstractAboutFragment.Library("org.oscim.android", "V™", "GNU LGPLv3, Hannes Janetzek and devemux86"));
@@ -40,6 +40,7 @@ public class AboutFragment extends AbstractAboutFragment {
         libraries.add(new AbstractAboutFragment.Library("org.microg.safeparcel", "SafeParcel", "Apache License 2.0, microG Team"));
         libraries.add(new AbstractAboutFragment.Library("org.slf4j", "SLF4J", "MIT License, QOS.ch"));
         libraries.add(new AbstractAboutFragment.Library("org.microg.nlp.service", "UnifiedNlp", "Apache License 2.0, microG Team"));
+        libraries.add(new AbstractAboutFragment.Library("com.android.volley", "Volley", "Apache License 2.0, The Android Open Source Project"));
         libraries.add(new AbstractAboutFragment.Library("org.microg.wearable", "Wearable", "Apache License 2.0, microG Team"));
         libraries.add(new AbstractAboutFragment.Library("com.squareup.wire", "Wire Protocol Buffers", "Apache License 2.0, Square Inc."));
     }