diff --git a/templates/index.html b/templates/index.html
index a0c0a651..727a3db9 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -71,6 +71,10 @@ <h2 class="title">{% trans %}Projects using SymPy{% endtrans %}</h2>
       {% trans %}galgebra{% endtrans %}</a></strong>:
       {% trans %} Geometric algebra (previously sympy.galgebra). {% endtrans%}
     </li>
+    <li><strong><a href="https://github.com/polyquantique/haarpy">
+      {% trans %}Haarpy{% endtrans %}</a></strong>:
+      {% trans %} A Python package for Weingarten calculus. {% endtrans%}
+    </li>
     <li><strong><a href="https://mech.fsv.cvut.cz/~stransky/software/latexexpr/doc/">
       {% trans %}LaTeX Expression project{% endtrans %}</a></strong>:
       {% trans %} Easy LaTeX typesetting of algebraic expressions in symbolic