diff --git a/pkg/api/azenvtypes.go b/pkg/api/azenvtypes.go
index 99846ef1af..a5c3507404 100644
--- a/pkg/api/azenvtypes.go
+++ b/pkg/api/azenvtypes.go
@@ -140,7 +140,7 @@ var (
 		ImageOffer:     "aks",
 		ImageSku:       "aks-ubuntu-1604-201812",
 		ImagePublisher: "microsoft-aks",
-		ImageVersion:   "2018.12.03",
+		ImageVersion:   "2018.12.12",
 	}
 
 	// DefaultAKSDockerEngineOSImageConfig is the AKS image based on Ubuntu 16.04.
@@ -148,7 +148,7 @@ var (
 		ImageOffer:     "aks",
 		ImageSku:       "aks-ubuntu-1604-docker-engine",
 		ImagePublisher: "microsoft-aks",
-		ImageVersion:   "2018.12.03",
+		ImageVersion:   "2018.12.12",
 	}
 
 	//DefaultOpenShift39RHELImageConfig is the OpenShift on RHEL distribution.
diff --git a/pkg/api/const.go b/pkg/api/const.go
index bd19636c07..120de309bf 100644
--- a/pkg/api/const.go
+++ b/pkg/api/const.go
@@ -242,7 +242,7 @@ const (
 	// AzureCniPluginVerLinux specifies version of Azure CNI plugin, which has been mirrored from
 	// https://github.com/Azure/azure-container-networking/releases/download/${AZURE_PLUGIN_VER}/azure-vnet-cni-linux-amd64-${AZURE_PLUGIN_VER}.tgz
 	// to https://acs-mirror.azureedge.net/cni
-	AzureCniPluginVerLinux = "v1.0.13"
+	AzureCniPluginVerLinux = "v1.0.15"
 	// AzureCniPluginVerWindows specifies version of Azure CNI plugin, which has been mirrored from
 	// https://github.com/Azure/azure-container-networking/releases/download/${AZURE_PLUGIN_VER}/azure-vnet-cni-windows-amd64-${AZURE_PLUGIN_VER}.tgz
 	// to https://acs-mirror.azureedge.net/cni