diff --git a/src/theme-src/package.json b/src/theme-src/package.json
index d47f9c733..c58579757 100644
--- a/src/theme-src/package.json
+++ b/src/theme-src/package.json
@@ -23,7 +23,7 @@
     "@babel/preset-env": "^7.14.8",
     "@fontsource/jetbrains-mono": "^4.5.0",
     "@fontsource/roboto": "^4.5.0",
-    "autoprefixer": "^10.3.3",
+    "autoprefixer": "^10.3.4",
     "babel-loader": "^8.2.2",
     "clean-webpack-plugin": "^4.0.0",
     "css-loader": "^6.2.0",
diff --git a/src/theme-src/yarn.lock b/src/theme-src/yarn.lock
index 5aadece89..9513f4d14 100644
--- a/src/theme-src/yarn.lock
+++ b/src/theme-src/yarn.lock
@@ -1351,10 +1351,10 @@ astral-regex@^2.0.0:
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-2.0.0.tgz#483143c567aeed4785759c0865786dc77d7d2e31"
   integrity sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==
 
-autoprefixer@^10.2.0, autoprefixer@^10.3.3:
-  version "10.3.3"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-10.3.3.tgz#4bac89c74ef98e6a40fe1c5b76c0d1c91db153ce"
-  integrity sha512-yRzjxfnggrP/+qVHlUuZz5FZzEbkT+Yt0/Df6ScEMnbbZBLzYB2W0KLxoQCW+THm1SpOsM1ZPcTHAwuvmibIsQ==
+autoprefixer@^10.2.0, autoprefixer@^10.3.4:
+  version "10.3.4"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-10.3.4.tgz#29efe5d19f51c281953178ddb5b84c5f1ca24c86"
+  integrity sha512-EKjKDXOq7ug+jagLzmnoTRpTT0q1KVzEJqrJd0hCBa7FiG0WbFOBCcJCy2QkW1OckpO3qgttA1aWjVbeIPAecw==
   dependencies:
     browserslist "^4.16.8"
     caniuse-lite "^1.0.30001252"