diff --git a/README.md b/README.md
index fb638a8c..37604c20 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,15 @@ MKDOCS_EXPORTER_PDF=true  mkdocs build
 ```
 
  The PDF file is generated in`site/trio-docs.pdf`.
- 
+
+### Find Broken Links
+
+To list broken links, we use [`mkdocs-htmlproofer-plugin`](https://github.com/manuzhang/mkdocs-htmlproofer-plugin):
+
+```shell
+CHECK_BROKEN_LINKS=true mkdocs build --quiet
+```
+
 ## Contribute
 
 You can contribute to the Trio documentation by correcting typos or suggesting new content.
diff --git a/docs/operate/build.md b/docs/operate/build.md
index d96b286f..6f936cc4 100644
--- a/docs/operate/build.md
+++ b/docs/operate/build.md
@@ -142,7 +142,7 @@ If you build Trio on your Mac using Xcode, the recommendation is to use the [**T
 
 ### Build Trio with Script
 
-The **`TrioBuildSelectScript`** is similar to the script used to build Loop. If you need it, extensive instructions for that script are provided at these links: [LoopDocs: Build Select Script](https://loopkit.github.io/loopdocs/build/step14/#build-select-script) and [Loop and Learn: Build Select Script](https://www.loopandlearn.org/build-select/).
+The **`TrioBuildSelectScript`** is similar to the script used to build Loop. If you need it, extensive instructions for that script are provided at these links: [LoopDocs: Build Select Script](https://loopkit.github.io/loopdocs/build/build-app/#build-select-script) and [Loop and Learn: Build Select Script](https://www.loopandlearn.org/build-select/).
 
 The **`TrioBuildSelectScript`** offers the choice to:
 
@@ -198,7 +198,7 @@ For more information, refer to [Loop and Learn: Maintenance Utitilites](https://
 
 ### Build Errors
 
-If you encounter any build issues, please look at the [LoopDocs Build](https://loopkit.github.io/loopdocs/build/build_errors/) errors page. Only some things on that page are relevant for building Trio, but many potential issues will likely be covered there. You will also get helpful advice about what info to provide if you need to ask for help. When you have identified the error message(s), you can use the search tool in LoopDocs to see if your error is mentioned.
+If you encounter any build issues, please look at the [LoopDocs Build](https://loopkit.github.io/loopdocs/build/build-errors/) errors page. Only some things on that page are relevant for building Trio, but many potential issues will likely be covered there. You will also get helpful advice about what info to provide if you need to ask for help. When you have identified the error message(s), you can use the search tool in LoopDocs to see if your error is mentioned.
 
 If you need it, you are most likely to get help in one of these groups:
 
diff --git a/mkdocs.yml b/mkdocs.yml
index b86929f9..b0ee8ce0 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -3,7 +3,7 @@ site_name: TrioDocs
 site_description: Documentation of Trio, an Automated Insulin Delivery system for iOS.
 site_url: https://docs.diy-trio.org/
 site_author: Trio Community
-use_directory_urls: true
+use_directory_urls: !ENV [CHECK_BROKEN_LINKS, True]
 
 # GitHub Repository
 repo_name: nightscout/trio-docs
@@ -86,6 +86,9 @@ plugins:
           icon: material-file-download-outline
           enabled: !!python/name:mkdocs_exporter.formats.pdf.buttons.download.enabled
           attributes: !!python/name:mkdocs_exporter.formats.pdf.buttons.download.attributes
+  - htmlproofer:
+      enabled: !ENV [CHECK_BROKEN_LINKS, False]
+      raise_error_after_finish: true
   - search
 
 extra_css:
diff --git a/requirements.in b/requirements.in
index b412d4b0..2a48c6b1 100644
--- a/requirements.in
+++ b/requirements.in
@@ -3,5 +3,6 @@ mkdocs-exporter==6.1.1
 mkdocs-material>=9.5.9
 mkdocs-include-markdown-plugin>=6.0.4
 mkdocs-exclude>=1.0.2
+mkdocs-htmlproofer-plugin>=1.3.0
 mkdocs-open-in-new-tab==1.0.6
 mkdocs-macros-plugin>=1.0.4
diff --git a/requirements.txt b/requirements.txt
index 36cc9c6d..3592d598 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,37 +6,38 @@ charset-normalizer==3.4.0
 click==8.1.7
 colorama==0.4.6
 ghp-import==2.1.0
-greenlet==3.0.3
+greenlet==3.1.1
 hjson==3.1.0
 idna==3.10
 Jinja2==3.1.4
 libsass==0.23.0
 lxml==5.3.0
 Markdown==3.7
-MarkupSafe==3.0.1
+MarkupSafe==3.0.2
 mergedeep==1.3.4
 mkdocs==1.6.1
 mkdocs-exclude==1.0.2
 mkdocs-exporter==6.1.1
 mkdocs-get-deps==0.2.0
-mkdocs-include-markdown-plugin==6.2.2
-mkdocs-macros-plugin==1.3.5
-mkdocs-material==9.5.40
+mkdocs-htmlproofer-plugin==1.3.0
+mkdocs-include-markdown-plugin==7.0.0
+mkdocs-macros-plugin==1.3.7
+mkdocs-material==9.5.44
 mkdocs-material-extensions==1.3.1
 mkdocs-open-in-new-tab==1.0.6
-packaging==24.1
+packaging==24.2
 paginate==0.5.7
 pathspec==0.12.1
 platformdirs==4.3.6
-playwright==1.47.0
+playwright==1.48.0
 pyee==12.0.0
 Pygments==2.18.0
-pymdown-extensions==10.11.2
-pypdf==5.0.1
+pymdown-extensions==10.12
+pypdf==5.1.0
 python-dateutil==2.9.0.post0
 PyYAML==6.0.2
 pyyaml_env_tag==0.1
-regex==2024.9.11
+regex==2024.11.6
 requests==2.32.3
 six==1.16.0
 soupsieve==2.6
@@ -44,5 +45,5 @@ super_collections==0.5.3
 termcolor==2.5.0
 typing_extensions==4.12.2
 urllib3==2.2.3
-watchdog==5.0.3
+watchdog==6.0.0
 wcmatch==10.0