diff --git a/build/mkdocs/Dockerfile b/build/mkdocs/Dockerfile
index ebd3efc57e..52fe365905 100644
--- a/build/mkdocs/Dockerfile
+++ b/build/mkdocs/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.9
+FROM alpine:3.10
 
 RUN apk update && apk add --no-cache \
   bash \
diff --git a/docs/examples/psp/README.md b/docs/examples/psp/README.md
index 9e8ad7baae..1061794903 100644
--- a/docs/examples/psp/README.md
+++ b/docs/examples/psp/README.md
@@ -15,9 +15,9 @@ kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/mast
 ```
 
 Now that the pod security policy is applied, we can continue as usual by applying the
-[mandatory.yaml](../../../deploy/static/mandatory.yaml)
+[mandatory.yaml](https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml)
 according to the [Installation Guide](../../deploy/index.md). 
 
 Note: PSP permissions must be granted before to the creation of the Deployment and the ReplicaSet.
 If the Deployment or ReplicaSet already exist, they will receive the PSP permissions
-only after deleting them and reapplying mandatory.yaml.
\ No newline at end of file
+only after deleting them and reapplying mandatory.yaml.
diff --git a/requirements-docs.txt b/requirements-docs.txt
index e9d0be8439..14700a61d6 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,4 +1,4 @@
-mkdocs-material~=4.0.2
+mkdocs-material~=4.4.0
 mkdocs~=1.0.4
 pymdown-extensions~=6.0
 pygments~=2.3.1