diff --git a/package.json b/package.json
index 459d8250..37e356fa 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "eslint": "^8.56.0",
     "eslint-plugin-frontmatter": "0.0.8",
     "gulp": "^4.0.2",
-    "gulp-postcss": "^9.0.0",
+    "gulp-postcss": "^9.1.0",
     "gulp-rename": "^2.0.0",
     "gulp-replace": "^1.0.0",
     "gulp-sass": "^5.1.0",
diff --git a/yarn.lock b/yarn.lock
index 826a80be..1072704f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2013,6 +2013,13 @@ fancy-log@^1.3.2, fancy-log@^1.3.3:
     parse-node-version "^1.0.0"
     time-stamp "^1.0.0"
 
+fancy-log@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/fancy-log/-/fancy-log-2.0.0.tgz#cad207b8396d69ae4796d74d17dff5f68b2f7343"
+  integrity sha512-9CzxZbACXMUXW13tS0tI8XsGGmxWzO2DmYrGuBJOJ8k8q2K7hwfJA5qHjuPPe8wtsco33YR9wc+Rlr5wYFvhSA==
+  dependencies:
+    color-support "^1.1.3"
+
 fast-deep-equal@^3.1.1, fast-deep-equal@^3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"
@@ -2485,7 +2492,7 @@ gulp-cli@^2.2.0:
     v8flags "^3.2.0"
     yargs "^7.1.0"
 
-gulp-postcss@9.0.1, gulp-postcss@^9.0.0:
+gulp-postcss@9.0.1:
   version "9.0.1"
   resolved "https://registry.yarnpkg.com/gulp-postcss/-/gulp-postcss-9.0.1.tgz#d43caa2f2ce1018f889f7c1296faf82e9928b66f"
   integrity sha512-9QUHam5JyXwGUxaaMvoFQVT44tohpEFpM8xBdPfdwTYGM0AItS1iTQz0MpsF8Jroh7GF5Jt2GVPaYgvy8qD2Fw==
@@ -2495,6 +2502,16 @@ gulp-postcss@9.0.1, gulp-postcss@^9.0.0:
     postcss-load-config "^3.0.0"
     vinyl-sourcemaps-apply "^0.2.1"
 
+gulp-postcss@^9.1.0:
+  version "9.1.0"
+  resolved "https://registry.yarnpkg.com/gulp-postcss/-/gulp-postcss-9.1.0.tgz#0d317134d40d9565f265bd32c7f71605a54cadd8"
+  integrity sha512-a843mcKPApfeI987uqQbc8l50xXeWIXBsiVvYxtCI5XtVAMzTi/HnU2qzQpGwkB/PAOfsLV8OsqDv2iJZ9qvdw==
+  dependencies:
+    fancy-log "^2.0.0"
+    plugin-error "^2.0.1"
+    postcss-load-config "^5.0.0"
+    vinyl-sourcemaps-apply "^0.2.1"
+
 gulp-rename@2.0.0, gulp-rename@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/gulp-rename/-/gulp-rename-2.0.0.tgz#9bbc3962b0c0f52fc67cd5eaff6c223ec5b9cf6c"
@@ -3453,6 +3470,11 @@ lilconfig@^2.0.5:
   resolved "https://registry.yarnpkg.com/lilconfig/-/lilconfig-2.0.6.tgz#32a384558bd58af3d4c6e077dd1ad1d397bc69d4"
   integrity sha512-9JROoBW7pobfsx+Sq2JsASvCo6Pfo6WWoUW79HuB1BCoBXD4PLWJPqDF6fNj67pqBYTbAHkE57M1kS/+L1neOg==
 
+lilconfig@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/lilconfig/-/lilconfig-3.0.0.tgz#f8067feb033b5b74dab4602a5f5029420be749bc"
+  integrity sha512-K2U4W2Ff5ibV7j7ydLr+zLAkIg5JJ4lPn1Ltsdt+Tz/IjQ8buJ55pZAxoP34lqIiwtF9iAvtLv3JGv7CAyAg+g==
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -4224,6 +4246,13 @@ plugin-error@1.0.1, plugin-error@^1.0.1:
     arr-union "^3.1.0"
     extend-shallow "^3.0.2"
 
+plugin-error@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/plugin-error/-/plugin-error-2.0.1.tgz#f2ac92bac8c85e3e23492d76d0c3ca12f30eb00b"
+  integrity sha512-zMakqvIDyY40xHOvzXka0kUvf40nYIuwRE8dWhti2WtjQZ31xAgBZBhxsK7vK3QbRXS1Xms/LO7B5cuAsfB2Gg==
+  dependencies:
+    ansi-colors "^1.0.1"
+
 pn@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/pn/-/pn-1.1.0.tgz#e2f4cef0e219f463c179ab37463e4e1ecdccbafb"
@@ -4256,6 +4285,14 @@ postcss-load-config@^3.0.0:
     lilconfig "^2.0.5"
     yaml "^1.10.2"
 
+postcss-load-config@^5.0.0:
+  version "5.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-5.0.2.tgz#3d4261d616428e3d6e41c8236c3e456c0f49266f"
+  integrity sha512-Q8QR3FYbqOKa0bnC1UQ2bFq9/ulHX5Bi34muzitMr8aDtUelO5xKeJEYC/5smE0jNE9zdB/NBnOwXKexELbRlw==
+  dependencies:
+    lilconfig "^3.0.0"
+    yaml "^2.3.4"
+
 postcss-selector-parser@6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-6.0.2.tgz#934cf799d016c83411859e09dcecade01286ec5c"
@@ -5973,6 +6010,11 @@ yaml@^1.10.2:
   resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.10.2.tgz#2301c5ffbf12b467de8da2333a459e29e7920e4b"
   integrity sha512-r3vXyErRCYJ7wg28yvBY5VSoAF8ZvlcW9/BwUzEtUsjvX/DKs24dIkuwjtuprwJJHsbyUbLApepYTR1BN4uHrg==
 
+yaml@^2.3.4:
+  version "2.3.4"
+  resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.3.4.tgz#53fc1d514be80aabf386dc6001eb29bf3b7523b2"
+  integrity sha512-8aAvwVUSHpfEqTQ4w/KMlf3HcRdt50E5ODIQJBw1fQ5RL34xabzxtUlzTXVqc4rkZsPbvrXKWnABCD7kWSmocA==
+
 yargs-parser@>=5.0.0-security.0, yargs-parser@^21.1.1:
   version "21.1.1"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-21.1.1.tgz#9096bceebf990d21bb31fa9516e0ede294a77d35"