diff --git a/package.json b/package.json
index 1a218eba4..87ee45252 100644
--- a/package.json
+++ b/package.json
@@ -187,7 +187,7 @@
     "mathjax": "2.7.9",
     "mermaid": "8.11.5",
     "mini-css-extract-plugin": "1.6.2",
-    "mocha": "9.0.3",
+    "mocha": "9.1.0",
     "mock-require": "3.0.3",
     "optimize-css-assets-webpack-plugin": "6.0.1",
     "prismjs": "1.24.1",
diff --git a/yarn.lock b/yarn.lock
index 54dc0eaa9..cca398e96 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7715,10 +7715,10 @@ mkdirp@^1.0.3, mkdirp@^1.0.4:
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.4.tgz#3eb5ed62622756d79a5f0e2a221dfebad75c2f7e"
   integrity sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==
 
-mocha@9.0.3:
-  version "9.0.3"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-9.0.3.tgz#128cd6bbd3ee0adcdaef715f357f76ec1e6227c7"
-  integrity sha512-hnYFrSefHxYS2XFGtN01x8un0EwNu2bzKvhpRFhgoybIvMaOkkL60IVPmkb5h6XDmUl4IMSB+rT5cIO4/4bJgg==
+mocha@9.1.0:
+  version "9.1.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-9.1.0.tgz#0a7aa6fc4f59d1015d4e11747d9104b752553c67"
+  integrity sha512-Kjg/XxYOFFUi0h/FwMOeb6RoroiZ+P1yOfya6NK7h3dNhahrJx1r2XIT3ge4ZQvJM86mdjNA+W5phqRQh7DwCg==
   dependencies:
     "@ungap/promise-all-settled" "1.1.2"
     ansi-colors "4.1.1"