diff --git a/azure-mgmt-containerservice/HISTORY.rst b/azure-mgmt-containerservice/HISTORY.rst
index 0fc4e3fe3b81..daa7e410fdc8 100644
--- a/azure-mgmt-containerservice/HISTORY.rst
+++ b/azure-mgmt-containerservice/HISTORY.rst
@@ -3,6 +3,13 @@
 Release History
 ===============
 
+4.2.2 (2018-08-09)
+++++++++++++++++++
+
+**Bugfixes**
+
+- Fix invalid definition of CredentialResult
+
 4.2.1 (2018-08-08)
 ++++++++++++++++++
 
diff --git a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result.py b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result.py
index 4d9a9c124789..89e748b481b3 100644
--- a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result.py
+++ b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result.py
@@ -20,8 +20,8 @@ class CredentialResult(Model):
 
     :ivar name: The name of the credential.
     :vartype name: str
-    :ivar value: The value of the credential.
-    :vartype value: str
+    :ivar value: Base64-encoded Kubernetes configuration file.
+    :vartype value: bytearray
     """
 
     _validation = {
@@ -31,7 +31,7 @@ class CredentialResult(Model):
 
     _attribute_map = {
         'name': {'key': 'name', 'type': 'str'},
-        'value': {'key': 'value', 'type': 'str'},
+        'value': {'key': 'value', 'type': 'bytearray'},
     }
 
     def __init__(self, **kwargs):
diff --git a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result_py3.py b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result_py3.py
index 18531e50cb59..6f387834bf06 100644
--- a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result_py3.py
+++ b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/credential_result_py3.py
@@ -20,8 +20,8 @@ class CredentialResult(Model):
 
     :ivar name: The name of the credential.
     :vartype name: str
-    :ivar value: The value of the credential.
-    :vartype value: str
+    :ivar value: Base64-encoded Kubernetes configuration file.
+    :vartype value: bytearray
     """
 
     _validation = {
@@ -31,7 +31,7 @@ class CredentialResult(Model):
 
     _attribute_map = {
         'name': {'key': 'name', 'type': 'str'},
-        'value': {'key': 'value', 'type': 'str'},
+        'value': {'key': 'value', 'type': 'bytearray'},
     }
 
     def __init__(self, **kwargs) -> None:
diff --git a/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py b/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py
index 6460f958f792..c215e51b49fe 100644
--- a/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py
+++ b/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py
@@ -9,5 +9,5 @@
 # regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "4.2.1"
+VERSION = "4.2.2"