diff --git a/README.md b/README.md
index a12f313..db6e6cb 100644
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+++ b/README.md
@@ -60,6 +60,8 @@ Please note that the GitHub Action downloads the recommended blocklists and whit
 3. Create the following GitHub Actions variables in your repository settings if you desire:
 
 - `FAST_MODE`: Enable the scripts to send the requests simultaneously. Beware that there's a rate limit of 1200 requests per five minutes (https://developers.cloudflare.com/fundamentals/api/reference/limits/) so make sure you know what you are doing.
+- `ALLOWLIST_URLS`: Uses your own allowlists. One URL per line. Recommended allowlists will be used if this variable is not provided.
+- `BLOCKLIST_URLS`: Uses your own blocklists. One URL per line. Recommended blocklists will be used if this variable is not provided.
 
 4. Create a new file in the repository named `.github/workflows/main.yml` with the contents of `auto_update_github_action.yml` found in this repository. The default settings will update your filters every week at 3 AM UTC. You can change this by editing the `schedule` property.
 5. Enable GitHub Actions in your repository settings.