diff --git a/src/main/java/com/nextcloud/common/OkHttpCredentialsUtil.kt b/src/main/java/com/nextcloud/common/OkHttpCredentialsUtil.kt
new file mode 100644
index 000000000..fb2c84fb0
--- /dev/null
+++ b/src/main/java/com/nextcloud/common/OkHttpCredentialsUtil.kt
@@ -0,0 +1,43 @@
+/*
+ * Nextcloud Android Library is available under MIT license
+ *
+ *  @author Álvaro Brey Vilas
+ *  Copyright (C) 2021 Álvaro Brey Vilas
+ *  Copyright (C) 2021 Nextcloud GmbH
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *  THE SOFTWARE.
+ */
+package com.nextcloud.common
+
+import android.os.Build
+import okhttp3.Credentials
+import java.nio.charset.StandardCharsets
+
+object OkHttpCredentialsUtil {
+    /**
+     * Builds basic OKHttp credentials string, using UTF_8 if available
+     */
+    @JvmStatic
+    fun basic(username: String, password: String): String = when {
+        Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT ->
+            Credentials.basic(username, password, StandardCharsets.UTF_8)
+        else -> Credentials.basic(username, password)
+    }
+}
diff --git a/src/main/java/com/owncloud/android/lib/common/OwnCloudAnonymousCredentials.java b/src/main/java/com/owncloud/android/lib/common/OwnCloudAnonymousCredentials.java
index af0e2a910..e7a0bd925 100644
--- a/src/main/java/com/owncloud/android/lib/common/OwnCloudAnonymousCredentials.java
+++ b/src/main/java/com/owncloud/android/lib/common/OwnCloudAnonymousCredentials.java
@@ -2,7 +2,7 @@
 
 import android.os.Parcel;
 
-import okhttp3.Credentials;
+import com.nextcloud.common.OkHttpCredentialsUtil;
 
 public class OwnCloudAnonymousCredentials implements OwnCloudCredentials {
 
@@ -27,7 +27,7 @@ public boolean authTokenExpires() {
 
     @Override
     public String toOkHttpCredentials() {
-        return Credentials.basic(getUsername(), getAuthToken());
+        return OkHttpCredentialsUtil.basic(getUsername(), getAuthToken());
     }
 
     @Override
diff --git a/src/main/java/com/owncloud/android/lib/common/OwnCloudBasicCredentials.java b/src/main/java/com/owncloud/android/lib/common/OwnCloudBasicCredentials.java
index e404a2f1c..61fb4dad2 100644
--- a/src/main/java/com/owncloud/android/lib/common/OwnCloudBasicCredentials.java
+++ b/src/main/java/com/owncloud/android/lib/common/OwnCloudBasicCredentials.java
@@ -25,6 +25,8 @@
 
 import android.os.Parcel;
 
+import com.nextcloud.common.OkHttpCredentialsUtil;
+
 import org.apache.commons.httpclient.UsernamePasswordCredentials;
 import org.apache.commons.httpclient.auth.AuthPolicy;
 import org.apache.commons.httpclient.auth.AuthScope;
@@ -34,7 +36,6 @@
 
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
-import okhttp3.Credentials;
 
 @EqualsAndHashCode
 public class OwnCloudBasicCredentials implements OwnCloudCredentials {
@@ -73,7 +74,7 @@ public boolean authTokenExpires() {
 
     @Override
     public String toOkHttpCredentials() {
-        return Credentials.basic(username, authToken);
+        return OkHttpCredentialsUtil.basic(username, authToken);
     }
 
 
diff --git a/src/main/java/com/owncloud/android/lib/common/OwnCloudClientFactory.java b/src/main/java/com/owncloud/android/lib/common/OwnCloudClientFactory.java
index 0a100dffe..7d31defab 100644
--- a/src/main/java/com/owncloud/android/lib/common/OwnCloudClientFactory.java
+++ b/src/main/java/com/owncloud/android/lib/common/OwnCloudClientFactory.java
@@ -40,12 +40,11 @@
 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
 import com.owncloud.android.lib.common.network.NetworkUtils;
 import com.owncloud.android.lib.common.utils.Log_OC;
+import com.nextcloud.common.OkHttpCredentialsUtil;
 
 import java.io.IOException;
 import java.security.GeneralSecurityException;
 
-import okhttp3.Credentials;
-
 public class OwnCloudClientFactory {
     
     final private static String TAG = OwnCloudClientFactory.class.getSimpleName();
@@ -220,9 +219,9 @@ public static NextcloudClient createNextcloudClient(Account account, Context app
         // AccountUtils.restoreCookies(account, client, appContext);
 
         return createNextcloudClient(baseUri,
-                userId,
-                Credentials.basic(username, password),
-                appContext,
-                true);
+                                     userId,
+                                     OkHttpCredentialsUtil.basic(username, password),
+                                     appContext,
+                                     true);
     }
 }