diff --git a/README.md b/README.md
index e9a9b6687..00ab0897c 100644
--- a/README.md
+++ b/README.md
@@ -120,7 +120,7 @@ Note:
   - [cni-plugins](https://github.com/containernetworking/plugins) 1.9.1
   - [calico](https://github.com/projectcalico/calico) 3.30.7
   - [cilium](https://github.com/cilium/cilium) 1.19.3
-  - [flannel](https://github.com/flannel-io/flannel) 0.27.3
+  - [flannel](https://github.com/flannel-io/flannel) 0.28.4
   - [kube-ovn](https://github.com/alauda/kube-ovn) 1.12.21
   - [kube-router](https://github.com/cloudnativelabs/kube-router) 2.1.1
   - [multus](https://github.com/k8snetworkplumbingwg/multus-cni) 4.2.2
diff --git a/roles/kubespray_defaults/defaults/main/download.yml b/roles/kubespray_defaults/defaults/main/download.yml
index 090c6df42..d881ba3fd 100644
--- a/roles/kubespray_defaults/defaults/main/download.yml
+++ b/roles/kubespray_defaults/defaults/main/download.yml
@@ -112,7 +112,7 @@ calico_apiserver_version: "{{ calico_version }}"
 typha_enabled: false
 calico_apiserver_enabled: false
 
-flannel_version: 0.27.3
+flannel_version: 0.28.4
 flannel_cni_version: 1.7.1-flannel1
 cni_version: "{{ (cni_binary_checksums['amd64'] | dict2items)[0].key }}"