diff --git a/package.json b/package.json
index a8748b73530..de10fb75b9c 100644
--- a/package.json
+++ b/package.json
@@ -276,7 +276,7 @@
     "content-security-policy-parser": "^0.4.0",
     "cookie": "^0.7.2",
     "css-loader": "^7.1.2",
-    "css-minimizer-webpack-plugin": "^7.0.0",
+    "css-minimizer-webpack-plugin": "^7.0.2",
     "eslint": "^8.57.0",
     "eslint-config-amo": "^5.10.0",
     "eslint-plugin-amo": "^1.26.0",
diff --git a/yarn.lock b/yarn.lock
index aba82b86640..05efe6c0571 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3450,15 +3450,15 @@ css-loader@^7.1.2:
     postcss-value-parser "^4.2.0"
     semver "^7.5.4"
 
-css-minimizer-webpack-plugin@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/css-minimizer-webpack-plugin/-/css-minimizer-webpack-plugin-7.0.0.tgz#b77a3d2f7c0fd02d3ac250dcc2f79065363f3cd3"
-  integrity sha512-niy66jxsQHqO+EYbhPuIhqRQ1mNcNVUHrMnkzzir9kFOERJUaQDDRhh7dKDz33kBpkWMF9M8Vx0QlDbc5AHOsw==
+css-minimizer-webpack-plugin@^7.0.2:
+  version "7.0.2"
+  resolved "https://registry.yarnpkg.com/css-minimizer-webpack-plugin/-/css-minimizer-webpack-plugin-7.0.2.tgz#aa1b01c6033f5b2f86ddb60c1f5bddd012b50cac"
+  integrity sha512-nBRWZtI77PBZQgcXMNqiIXVshiQOVLGSf2qX/WZfG8IQfMbeHUMXaBWQmiiSTmPJUflQxHjZjzAmuyO7tpL2Jg==
   dependencies:
     "@jridgewell/trace-mapping" "^0.3.25"
-    cssnano "^7.0.1"
+    cssnano "^7.0.4"
     jest-worker "^29.7.0"
-    postcss "^8.4.38"
+    postcss "^8.4.40"
     schema-utils "^4.2.0"
     serialize-javascript "^6.0.2"
 
@@ -3556,7 +3556,7 @@ cssnano-utils@^5.0.0:
   resolved "https://registry.yarnpkg.com/cssnano-utils/-/cssnano-utils-5.0.0.tgz#b53a0343dd5d21012911882db6ae7d2eae0e3687"
   integrity sha512-Uij0Xdxc24L6SirFr25MlwC2rCFX6scyUmuKpzI+JQ7cyqDEwD42fJ0xfB3yLfOnRDU5LKGgjQ9FA6LYh76GWQ==
 
-cssnano@^7.0.1:
+cssnano@^7.0.4:
   version "7.0.6"
   resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-7.0.6.tgz#63d54fd42bc017f6aaed69e47d9aaef85b7850ec"
   integrity sha512-54woqx8SCbp8HwvNZYn68ZFAepuouZW4lTwiMVnBErM3VkO7/Sd4oTOt3Zz3bPx3kxQ36aISppyXj2Md4lg8bw==
@@ -8571,10 +8571,10 @@ postcss-value-parser@^4.1.0, postcss-value-parser@^4.2.0:
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@^8.4.27, postcss@^8.4.33, postcss@^8.4.38, postcss@^8.5.2:
-  version "8.5.2"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.2.tgz#e7b99cb9d2ec3e8dd424002e7c16517cb2b846bd"
-  integrity sha512-MjOadfU3Ys9KYoX0AdkBlFEF1Vx37uCCeN4ZHnmwm9FfpbsGWMZeBLMmmpY+6Ocqod7mkdZ0DT31OlbsFrLlkA==
+postcss@^8.4.27, postcss@^8.4.33, postcss@^8.4.40, postcss@^8.5.2:
+  version "8.5.3"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.3.tgz#1463b6f1c7fb16fe258736cba29a2de35237eafb"
+  integrity sha512-dle9A3yYxlBSrt8Fu+IpjGT8SY8hN0mlaA6GY8t0P5PjIOZemULz/E2Bnm/2dcUOena75OTNkHI76uZBNUUq3A==
   dependencies:
     nanoid "^3.3.8"
     picocolors "^1.1.1"