diff --git a/source/documentation/appendix-docs/app_development.md b/source/documentation/appendix-docs/app_development.md
index 6ec9d167..51bfe42e 100644
--- a/source/documentation/appendix-docs/app_development.md
+++ b/source/documentation/appendix-docs/app_development.md
@@ -1,6 +1,6 @@
 > **IMPORTANT:**
-> These instructions are for older versions of JupyterLab earlier than v3.6.3/4.1.0.
-> [You can find the latest documentation on running an application locally here](https://user-guidance.analytical-platform.service.justice.gov.uk/tools/jupyterlab/index/html#accessing-a-locally-running-application).
+> These instructions are for older versions of JupyterLab earlier than v3.6.3-4.1.0.
+> [You can find the latest documentation on running an application locally here](https://user-guidance.analytical-platform.service.justice.gov.uk/tools/jupyterlab/index.html#accessing-a-locally-running-application).
 
 
 # Running your app within Jupyter
diff --git a/source/documentation/tools/jupyterlab/index.md b/source/documentation/tools/jupyterlab/index.md
index ece08957..ecb9d93b 100644
--- a/source/documentation/tools/jupyterlab/index.md
+++ b/source/documentation/tools/jupyterlab/index.md
@@ -93,7 +93,7 @@ And then select the kernel in Jupyter as [normal](../tools/package-management.ht
 
 ## Accessing a Locally Running Application
 
-As of version JupyterLab v3.6.3/4.1.0, to access an application running locally (such as Dash or Streamlit), it *must* be running on port `8081`. You can then access it by visiting `https://${USERNAME}-jupyter-lab-tunnel.tools.analytical-platform.service.justice.gov.uk`. As apps are only accessible on port 8081, you can only run one app at a time.
+As of version JupyterLab v3.6.3-4.1.0, to access an application running locally (such as Dash or Streamlit), it *must* be running on port `8081`. You can then access it by visiting `https://${USERNAME}-jupyter-lab-tunnel.tools.analytical-platform.service.justice.gov.uk`. As apps are only accessible on port 8081, you can only run one app at a time.
 
 This cannot be accessed by anyone other than yourself as it uses the same authentication method as your tooling.