diff --git a/app/src/main/java/io/lbry/browser/MainActivity.java b/app/src/main/java/io/lbry/browser/MainActivity.java
index c113c707..4947efc5 100644
--- a/app/src/main/java/io/lbry/browser/MainActivity.java
+++ b/app/src/main/java/io/lbry/browser/MainActivity.java
@@ -121,6 +121,7 @@ import java.io.InputStreamReader;
 import java.io.PrintStream;
 import java.net.ConnectException;
 import java.net.URI;
+import java.nio.charset.StandardCharsets;
 import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -1799,7 +1800,7 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
         if (!Helper.isNullOrEmpty(encryptedAuthToken)) {
             try {
                 Lbryio.AUTH_TOKEN = new String(Utils.decrypt(
-                        Base64.decode(encryptedAuthToken, Base64.NO_WRAP), this, Lbry.KEYSTORE), "UTF8");
+                        Base64.decode(encryptedAuthToken, Base64.NO_WRAP), this, Lbry.KEYSTORE), StandardCharsets.UTF_8);
             } catch (Exception ex) {
                 // pass. A new auth token would have to be generated if the old one cannot be decrypted
                 Log.e(TAG, "Could not decrypt existing auth token.", ex);
diff --git a/app/src/main/java/io/lbry/browser/utils/Lbryio.java b/app/src/main/java/io/lbry/browser/utils/Lbryio.java
index 68986978..036eb3f4 100644
--- a/app/src/main/java/io/lbry/browser/utils/Lbryio.java
+++ b/app/src/main/java/io/lbry/browser/utils/Lbryio.java
@@ -22,6 +22,7 @@ import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.lang.reflect.Type;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -304,7 +305,7 @@ public final class Lbryio {
     private static void broadcastAuthTokenGenerated(Context context) {
         try {
             if (context != null) {
-                String encryptedAuthToken = Utils.encrypt(AUTH_TOKEN.getBytes("UTF8"), context, Lbry.KEYSTORE);
+                String encryptedAuthToken = Utils.encrypt(AUTH_TOKEN.getBytes(StandardCharsets.UTF_8), context, Lbry.KEYSTORE);
                 Intent intent = new Intent(MainActivity.ACTION_AUTH_TOKEN_GENERATED);
                 intent.putExtra("authToken", encryptedAuthToken);
                 context.sendBroadcast(intent);