diff --git a/book/_config.yml b/book/_config.yml
index 4fb8630..770788e 100644
--- a/book/_config.yml
+++ b/book/_config.yml
@@ -51,6 +51,8 @@ sphinx:                                              # Options passed on to the
     - sphinx_dropdown_toggle                         # Adds a button to toggle all dropdowns with one click
     - sphinx_proof                                   # Allows you to add various mathy admonitions to your book: https://sphinx-proof.readthedocs.io/en/latest/
     - sphinx_code_examples                           # Allows you to include code blocks in examples: https://teachbooks.io/manual/_git/github.com_TeachBooks_sphinx-code-examples/main/MANUAL.html
+    - sphinx_accessibility                           # Allows dyslexic-friendly fonts and high contrast mode: https://teachbooks.io/manual/accessibility/_git/github.com_TeachBooks_Sphinx-Accessibility/manual/README.html
+
 
 bibtex_bibfiles: 
   - references.bib                                   # Required for references