diff --git a/content/rancher/v2.5/en/installation/install-rancher-on-k8s/_index.md b/content/rancher/v2.5/en/installation/install-rancher-on-k8s/_index.md
index 2b72cd8e8e7..9eaff33e7ea 100644
--- a/content/rancher/v2.5/en/installation/install-rancher-on-k8s/_index.md
+++ b/content/rancher/v2.5/en/installation/install-rancher-on-k8s/_index.md
@@ -123,7 +123,7 @@ These instructions are adapted from the [official cert-manager documentation](ht
 
 ```
 # Install the CustomResourceDefinition resources separately
-kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v1.0.4/cert-manager.crds.yaml
+kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v1.5.1/cert-manager.crds.yaml
 
 # **Important:**
 # If you are running Kubernetes v1.15 or below, you
@@ -148,7 +148,7 @@ helm repo update
 helm install \
   cert-manager jetstack/cert-manager \
   --namespace cert-manager \
-  --version v1.0.4
+  --version v1.5.1
 ```
 
 Once you’ve installed cert-manager, you can verify it is deployed correctly by checking the cert-manager namespace for running pods:
diff --git a/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/install-rancher/_index.md b/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/install-rancher/_index.md
index a2ce229ef2b..d675a8f89a5 100644
--- a/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/install-rancher/_index.md
+++ b/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/install-rancher/_index.md
@@ -102,7 +102,7 @@ helm repo update
 Fetch the latest cert-manager chart available from the [Helm chart repository](https://hub.helm.sh/charts/jetstack/cert-manager).
 
 ```plain
-helm fetch jetstack/cert-manager --version v1.0.4
+helm fetch jetstack/cert-manager --version v1.5.1
 ```
 
 ### 3. Render the cert-manager template
@@ -110,7 +110,7 @@ helm fetch jetstack/cert-manager --version v1.0.4
 Render the cert-manager template with the options you would like to use to install the chart. Remember to set the `image.repository` option to pull the image from your private registry. This will create a `cert-manager` directory with the Kubernetes manifest files.
 
 ```plain
-helm template cert-manager ./cert-manager-v1.0.4.tgz --output-dir . \
+helm template cert-manager ./cert-manager-v1.5.1.tgz --output-dir . \
     --namespace cert-manager \
     --set image.repository=<REGISTRY.YOURDOMAIN.COM:PORT>/quay.io/jetstack/cert-manager-controller \
     --set webhook.image.repository=<REGISTRY.YOURDOMAIN.COM:PORT>/quay.io/jetstack/cert-manager-webhook \
@@ -121,7 +121,7 @@ helm template cert-manager ./cert-manager-v1.0.4.tgz --output-dir . \
 
 Download the required CRD file for cert-manager:
    ```plain
-   curl -L -o cert-manager/cert-manager-crd.yaml https://github.com/jetstack/cert-manager/releases/download/v1.0.4/cert-manager.crds.yaml
+   curl -L -o cert-manager/cert-manager-crd.yaml https://github.com/jetstack/cert-manager/releases/download/v1.5.1/cert-manager.crds.yaml
    ```
 
 ### 5. Render the Rancher template
diff --git a/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/populate-private-registry/_index.md b/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/populate-private-registry/_index.md
index 6a42b228665..8e0e020ffa0 100644
--- a/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/populate-private-registry/_index.md
+++ b/content/rancher/v2.5/en/installation/other-installation-methods/air-gap/populate-private-registry/_index.md
@@ -64,7 +64,7 @@ In a Kubernetes Install, if you elect to use the Rancher default self-signed TLS
     ```plain
     helm repo add jetstack https://charts.jetstack.io
     helm repo update
-    helm fetch jetstack/cert-manager --version v1.0.4
+    helm fetch jetstack/cert-manager --version v1.5.1
     helm template ./cert-manager-<version>.tgz | grep -oP '(?<=image: ").*(?=")' >> ./rancher-images.txt
     ```