diff --git a/src/main/java/io/tealc/ClusterManager.java b/src/main/java/io/tealc/ClusterManager.java
index bd51c8e..a6744ab 100644
--- a/src/main/java/io/tealc/ClusterManager.java
+++ b/src/main/java/io/tealc/ClusterManager.java
@@ -21,7 +21,6 @@ public static synchronized ClusterManager getInstance() {
         }
 
         Config config = new ConfigBuilder()
-                .withUsername(Environment.WORKER_01_USERNAME)
                 .withOauthToken(Environment.WORKER_01_TOKEN)
                 .withMasterUrl(Environment.WORKER_01_URL)
                 .withDisableHostnameVerification(true)
@@ -31,7 +30,6 @@ public static synchronized ClusterManager getInstance() {
         CLIENTS.put(EClusters.WORKER_01, new KubeClient(config, "default"));
 
         config = new ConfigBuilder()
-                .withUsername(Environment.WORKER_02_USERNAME)
                 .withOauthToken(Environment.WORKER_02_TOKEN)
                 .withMasterUrl(Environment.WORKER_02_URL)
                 .withDisableHostnameVerification(true)
@@ -41,7 +39,6 @@ public static synchronized ClusterManager getInstance() {
         CLIENTS.put(EClusters.WORKER_02, new KubeClient(config, "default"));
 
         config = new ConfigBuilder()
-                .withUsername(Environment.WORKER_03_USERNAME)
                 .withOauthToken(Environment.WORKER_03_TOKEN)
                 .withMasterUrl(Environment.WORKER_03_URL)
                 .withDisableHostnameVerification(true)
diff --git a/src/main/java/io/tealc/Environment.java b/src/main/java/io/tealc/Environment.java
index 676bbd5..3666319 100644
--- a/src/main/java/io/tealc/Environment.java
+++ b/src/main/java/io/tealc/Environment.java
@@ -19,26 +19,20 @@ public class Environment {
     private static final Logger LOGGER = LoggerFactory.getLogger(Environment.class);
     private static final Map<String, String> VALUES = new HashMap<>();
 
-    public static final String WORKER_01_USERNAME_ENV = "WORKER_01_USERNAME";
     public static final String WORKER_01_TOKEN_ENV = "WORKER_01_OCP_TOKEN";
     public static final String WORKER_01_URL_ENV = "WORKER_01_URL";
-    public static final String WORKER_02_USERNAME_ENV = "WORKER_02_USERNAME";
     public static final String WORKER_02_TOKEN_ENV = "WORKER_02_OCP_TOKEN";
     public static final String WORKER_02_URL_ENV = "WORKER_02_URL";
-    public static final String WORKER_03_USERNAME_ENV = "WORKER_03_USERNAME";
     public static final String WORKER_03_TOKEN_ENV = "WORKER_03_OCP_TOKEN";
     public static final String WORKER_03_URL_ENV = "WORKER_03_URL";
 
     /**
      * Set values
      */
-    public static final String WORKER_01_USERNAME = getOrDefault(WORKER_01_USERNAME_ENV, null);
     public static final String WORKER_01_TOKEN = getOrDefault(WORKER_01_TOKEN_ENV, null);
     public static final String WORKER_01_URL = getOrDefault(WORKER_01_URL_ENV, null);
-    public static final String WORKER_02_USERNAME = getOrDefault(WORKER_02_USERNAME_ENV, null);
     public static final String WORKER_02_TOKEN = getOrDefault(WORKER_02_TOKEN_ENV, null);
     public static final String WORKER_02_URL = getOrDefault(WORKER_02_URL_ENV, null);
-    public static final String WORKER_03_USERNAME = getOrDefault(WORKER_03_USERNAME_ENV, null);
     public static final String WORKER_03_TOKEN = getOrDefault(WORKER_03_TOKEN_ENV, null);
     public static final String WORKER_03_URL = getOrDefault(WORKER_03_URL_ENV, null);