diff --git a/README.md b/README.md
index 05d497590..1cbdc3e2f 100644
--- a/README.md
+++ b/README.md
@@ -151,7 +151,7 @@ Note: Upstart/SysV init based OS types are not supported.
 - Application
   - [cephfs-provisioner](https://github.com/kubernetes-incubator/external-storage) v2.1.0-k8s1.11
   - [rbd-provisioner](https://github.com/kubernetes-incubator/external-storage) v2.1.1-k8s1.11
-  - [cert-manager](https://github.com/jetstack/cert-manager) v1.8.0
+  - [cert-manager](https://github.com/jetstack/cert-manager) v1.8.1
   - [coredns](https://github.com/coredns/coredns) v1.8.6
   - [ingress-nginx](https://github.com/kubernetes/ingress-nginx) v1.2.1
 
diff --git a/roles/download/defaults/main.yml b/roles/download/defaults/main.yml
index df1049ced..3c2a0ec5b 100644
--- a/roles/download/defaults/main.yml
+++ b/roles/download/defaults/main.yml
@@ -1025,7 +1025,7 @@ ingress_nginx_controller_image_repo: "{{ kube_image_repo }}/ingress-nginx/contro
 ingress_nginx_controller_image_tag: "v1.2.1"
 alb_ingress_image_repo: "{{ docker_image_repo }}/amazon/aws-alb-ingress-controller"
 alb_ingress_image_tag: "v1.1.9"
-cert_manager_version: "v1.8.0"
+cert_manager_version: "v1.8.1"
 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"