diff --git a/docs/variables/kubelet.md b/docs/variables/kubelet.md
index 27d91ab..cbd4468 100644
--- a/docs/variables/kubelet.md
+++ b/docs/variables/kubelet.md
@@ -54,7 +54,7 @@ No modules.
 | <a name="input_extra_config"></a> [extra\_config](#input\_extra\_config) | The extra configuration of kubelet. The variables need to follow https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/kubelet/config/v1beta1/types.go. Do not use underline. | `map(string)` | `{}` | no |
 | <a name="input_extra_flags"></a> [extra\_flags](#input\_extra\_flags) | The extra flags of kubelet. The variables need to follow https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/. Do not use underline. | `map(string)` | `{}` | no |
 | <a name="input_feature_gates"></a> [feature\_gates](#input\_feature\_gates) | A set of key=value pairs that describe feature gates for alpha/experimental features. | `map(bool)` | `{}` | no |
-| <a name="input_kubernetes_version"></a> [kubernetes\_version](#input\_kubernetes\_version) | Desired Kubernetes version. | `string` | `"v1.31.0"` | no |
+| <a name="input_kubernetes_version"></a> [kubernetes\_version](#input\_kubernetes\_version) | Desired Kubernetes version. | `string` | `"v1.31.1"` | no |
 | <a name="input_log_level"></a> [log\_level](#input\_log\_level) | (Optional) log level of kubelet, default is 2 (Info) | `string` | `"2"` | no |
 | <a name="input_max_pods"></a> [max\_pods](#input\_max\_pods) | (Optional) the max pod number in the node when enable eni prefix | `string` | `"110"` | no |
 | <a name="input_network_plugin"></a> [network\_plugin](#input\_network\_plugin) | Desired network plugin which is use for Kubernetes cluster. e.g. 'flannel', 'amazon-vpc', 'cilium-vxlan' | `string` | `"amazon-vpc"` | no |
diff --git a/docs/variables/master.md b/docs/variables/master.md
index 71dfe4f..7b2e7c8 100644
--- a/docs/variables/master.md
+++ b/docs/variables/master.md
@@ -96,7 +96,7 @@ This document gives an overview of variables used in the Ignition of the Kuberne
 | <a name="input_kubelet_cert"></a> [kubelet\_cert](#input\_kubelet\_cert) | The kubelet cert property. | <pre>object({<br>    algo   = string<br>    size   = number<br>    expiry = string<br>  })</pre> | <pre>{<br>  "algo": "rsa",<br>  "expiry": "87600h",<br>  "size": 2048<br>}</pre> | no |
 | <a name="input_kubelet_config"></a> [kubelet\_config](#input\_kubelet\_config) | The configuration of kubelet. The variables need to follow https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/kubelet/config/v1beta1/types.go. Do not use underline. | `map(any)` | `{}` | no |
 | <a name="input_kubelet_flags"></a> [kubelet\_flags](#input\_kubelet\_flags) | The flags of kubelet. The variables need to follow https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/. Do not use underline. | `map(any)` | `{}` | no |
-| <a name="input_kubernetes_version"></a> [kubernetes\_version](#input\_kubernetes\_version) | Desired Kubernetes version. | `string` | `"v1.31.0"` | no |
+| <a name="input_kubernetes_version"></a> [kubernetes\_version](#input\_kubernetes\_version) | Desired Kubernetes version. | `string` | `"v1.31.1"` | no |
 | <a name="input_log_level"></a> [log\_level](#input\_log\_level) | Log level and verbosity of each components | <pre>object({<br>    aws_cloud_controller_manager = optional(string, "2")     # 2: Info, 3: Extended Info, 4: Debug, 5: Trace<br>    aws_vpc_cni                  = optional(string, "DEBUG") # DEBUG, INFO, WARN, ERROR, FATAL<br>    containerd                   = optional(string, "info")  # trace, debug, info, warn, error, fatal, panic<br>    cilium_cni                   = optional(string, "DEBUG") # DEBUG: enable debug logging, INFO: disable debug logging<br>    docker                       = optional(string, "info")  # debug, info, warn, error, fatal<br>    kube_apiserver               = optional(string, "2")     # 2: Info, 3: Extended Info, 4: Debug, 5: Trace<br>    kube_controller_manager      = optional(string, "2")     # 2: Info, 3: Extended Info, 4: Debug, 5: Trace<br>    kube_scheduler               = optional(string, "2")     # 2: Info, 3: Extended Info, 4: Debug, 5: Trace<br>    kube_proxy                   = optional(string, "2")     # 2: Info, 3: Extended Info, 4: Debug, 5: Trace<br>    kubelet                      = optional(string, "2")     # 2: Info, 3: Extended Info, 4: Debug, 5: Trace<br>  })</pre> | n/a | yes |
 | <a name="input_max_pods"></a> [max\_pods](#input\_max\_pods) | (Optional) the max pod number in the node when enable eni prefix | `string` | `"110"` | no |
 | <a name="input_network_plugin"></a> [network\_plugin](#input\_network\_plugin) | Desired network plugin which is use for Kubernetes cluster. e.g. 'flannel', 'amazon-vpc', 'cilium-vxlan' | `string` | `"amazon-vpc"` | no |
diff --git a/modules/kubelet/variables.tf b/modules/kubelet/variables.tf
index dddbfe5..0751a78 100644
--- a/modules/kubelet/variables.tf
+++ b/modules/kubelet/variables.tf
@@ -1,7 +1,7 @@
 variable "kubernetes_version" {
   description = "Desired Kubernetes version."
   type        = string
-  default     = "v1.31.0"
+  default     = "v1.31.1"
 }
 
 variable "binaries" {
diff --git a/variables.tf b/variables.tf
index 2133077..15cca59 100644
--- a/variables.tf
+++ b/variables.tf
@@ -1,7 +1,7 @@
 variable "kubernetes_version" {
   description = "Desired Kubernetes version."
   type        = string
-  default     = "v1.31.0"
+  default     = "v1.31.1"
 }
 
 variable "binaries" {