diff --git a/.github/workflows/link-check-deploy.yml b/.github/workflows/link-check-deploy.yml
index 45068a38d8..1dca96cd73 100644
--- a/.github/workflows/link-check-deploy.yml
+++ b/.github/workflows/link-check-deploy.yml
@@ -13,6 +13,8 @@ jobs:
       github.event.deployment_status.state == 'success'
     steps:
       - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
       - id: build_check
         uses: LouisBrunner/checks-action@v1.0.0
         with:
@@ -21,7 +23,7 @@ jobs:
           status: queued
       - name: Run Link Check
         id: check
-        uses: iterative/link-check.action@v0.8
+        uses: iterative/link-check.action@v0.9
         with:
           diff: true
           configFile: config/link-check/config.yml
diff --git a/content/docs/user-guide/contributing/docs.md b/content/docs/user-guide/contributing/docs.md
index fa16a0271a..0d7d0b7c8a 100644
--- a/content/docs/user-guide/contributing/docs.md
+++ b/content/docs/user-guide/contributing/docs.md
@@ -85,6 +85,17 @@ Launch the server locally with:
 $ yarn develop
 ```
 
+> ⚠️ Do you get an error from `gatsby-plugin-manifest` about unsupported image
+> formats? You may be running into
+> [this issue](https://github.com/gatsbyjs/gatsby/issues/20698). You can fix it
+> by reinstalling `node_modules` with a flag that forces `sharp` to ignore your
+> globally installed `libvips`:
+>
+> ```dvc
+> $ rm -r node_modules
+> $ SHARP_IGNORE_GLOBAL_LIBVIPS=true yarn
+> ```
+
 This will start the server on the default port, `8000`. Visit
 `http://localhost:8000/` and navigate to the page in question. This will also
 enable the pre-commit Git hook that will be formatting and linting your code and