diff --git a/README.md b/README.md
index 0b21c1acc87003e03f246348d436c426ce1f9be8..e3a0f3fdea962d76739e5ee4f2bb95f1a9e7eb5e 100644
--- a/README.md
+++ b/README.md
@@ -177,7 +177,7 @@ Note: Upstart/SysV init based OS types are not supported.
   - [weave](https://github.com/weaveworks/weave) v2.8.1
   - [kube-vip](https://github.com/kube-vip/kube-vip) v0.5.12
 - Application
-  - [cert-manager](https://github.com/jetstack/cert-manager) v1.11.1
+  - [cert-manager](https://github.com/jetstack/cert-manager) v1.12.5
   - [coredns](https://github.com/coredns/coredns) v1.10.1
   - [ingress-nginx](https://github.com/kubernetes/ingress-nginx) v1.9.3
   - [krew](https://github.com/kubernetes-sigs/krew) v0.4.4
diff --git a/roles/download/defaults/main/main.yml b/roles/download/defaults/main/main.yml
index 81807396774523349c7daeaec0e7e119878f04a5..4f00beb042125b02aa395ca5a139aebba2345535 100644
--- a/roles/download/defaults/main/main.yml
+++ b/roles/download/defaults/main/main.yml
@@ -313,7 +313,7 @@ ingress_nginx_kube_webhook_certgen_image_repo: "{{ kube_image_repo }}/ingress-ng
 ingress_nginx_kube_webhook_certgen_image_tag: "v20231011-8b53cabe0"
 alb_ingress_image_repo: "{{ docker_image_repo }}/amazon/aws-alb-ingress-controller"
 alb_ingress_image_tag: "v1.1.9"
-cert_manager_version: "v1.11.1"
+cert_manager_version: "v1.12.5"
 cert_manager_controller_image_repo: "{{ quay_image_repo }}/jetstack/cert-manager-controller"
 cert_manager_controller_image_tag: "{{ cert_manager_version }}"
 cert_manager_cainjector_image_repo: "{{ quay_image_repo }}/jetstack/cert-manager-cainjector"