diff --git a/package.json b/package.json
index 4254c07..452bd6e 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "gscan": "5.2.4",
     "gulp": "4.0.2",
     "gulp-livereload": "4.0.2",
-    "gulp-postcss": "9.0.1",
+    "gulp-postcss": "10.0.0",
     "gulp-sourcemaps": "3.0.0",
     "gulp-uglify": "3.0.2",
     "gulp-util": "3.0.8",
diff --git a/yarn.lock b/yarn.lock
index bda5870..64585bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3617,7 +3617,7 @@ fancy-log@1.3.2:
     color-support "^1.1.3"
     time-stamp "^1.0.0"
 
-fancy-log@^1.1.0, fancy-log@^1.3.2, fancy-log@^1.3.3:
+fancy-log@^1.1.0, fancy-log@^1.3.2:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/fancy-log/-/fancy-log-1.3.3.tgz#dbc19154f558690150a23953a0adbd035be45fc7"
   integrity sha512-k9oEhlyc0FrVh25qYuSELjr8oxsCoc4/LEZfg2iJJrfEk/tZL9bCoJE47gqAvI2m/AUjluCS4+3I0eTx8n3AEw==
@@ -3627,6 +3627,13 @@ fancy-log@^1.1.0, 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:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"
@@ -4175,14 +4182,14 @@ gulp-livereload@4.0.2:
     tiny-lr "^1.1.1"
     vinyl "^2.2.0"
 
-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==
+gulp-postcss@10.0.0:
+  version "10.0.0"
+  resolved "https://registry.yarnpkg.com/gulp-postcss/-/gulp-postcss-10.0.0.tgz#a88d7c6602f8a8c94aaa9f28ac3a68def00c7ada"
+  integrity sha512-z1RF2RJEX/BvFsKN11PXai8lRmihZTiHnlJf7Zu8uHaA/Q7Om4IeN8z1NtMAW5OiLwUY02H0DIFl9tHl0CNSgA==
   dependencies:
-    fancy-log "^1.3.3"
-    plugin-error "^1.0.1"
-    postcss-load-config "^3.0.0"
+    fancy-log "^2.0.0"
+    plugin-error "^2.0.1"
+    postcss-load-config "^5.0.0"
     vinyl-sourcemaps-apply "^0.2.1"
 
 gulp-sourcemaps@3.0.0:
@@ -4901,12 +4908,7 @@ liftoff@^3.1.0:
     rechoir "^0.6.2"
     resolve "^1.1.7"
 
-lilconfig@^2.0.5:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/lilconfig/-/lilconfig-2.1.0.tgz#78e23ac89ebb7e1bfbf25b18043de756548e7f52"
-  integrity sha512-utWOt/GHzuUxnLKxB6dk81RoOeoNeHgbrXiuGk4yyF5qlRz+iIVWu56E2fqGHFrXz0QNUhLB/8nKqvRH66JKGQ==
-
-lilconfig@^3.1.3:
+lilconfig@^3.1.1, lilconfig@^3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/lilconfig/-/lilconfig-3.1.3.tgz#a1bcfd6257f9585bf5ae14ceeebb7b559025e4c4"
   integrity sha512-/vlFKAoH5Cgt3Ie+JLhRbwOsCQePABiU3tJ1egGvyQ+33R/vcwM2Zl2QR/LzjsBeItPt3oSVXapn+m4nQDvpzw==
@@ -5823,6 +5825,13 @@ 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"
+
 pluralize@^8.0.0:
   version "8.0.0"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-8.0.0.tgz#1a6fa16a38d12a1901e0320fa017051c539ce3b1"
@@ -5924,13 +5933,13 @@ postcss-import@^14.0.0:
     read-cache "^1.0.0"
     resolve "^1.1.7"
 
-postcss-load-config@^3.0.0:
-  version "3.1.4"
-  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-3.1.4.tgz#1ab2571faf84bb078877e1d07905eabe9ebda855"
-  integrity sha512-6DiM4E7v4coTE4uzA8U//WhtPwyhiim3eyjEMFCnUpzbrkK9wJHgKDT2mR+HbtSrd/NubVaYTOpSpjUl8NQeRg==
+postcss-load-config@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-5.1.0.tgz#4ded23410da973e05edae9d41fa99bb5c1d5477f"
+  integrity sha512-G5AJ+IX0aD0dygOE0yFZQ/huFFMSNneyfp0e3/bT05a8OfPC5FUoZRPfGijUdGOJNMewJiwzcHJXFafFzeKFVA==
   dependencies:
-    lilconfig "^2.0.5"
-    yaml "^1.10.2"
+    lilconfig "^3.1.1"
+    yaml "^2.4.2"
 
 postcss-merge-longhand@^7.0.5:
   version "7.0.5"
@@ -7553,10 +7562,10 @@ y18n@^5.0.5:
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-5.0.8.tgz#7f4934d0f7ca8c56f95314939ddcd2dd91ce1d55"
   integrity sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==
 
-yaml@^1.10.2:
-  version "1.10.2"
-  resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.10.2.tgz#2301c5ffbf12b467de8da2333a459e29e7920e4b"
-  integrity sha512-r3vXyErRCYJ7wg28yvBY5VSoAF8ZvlcW9/BwUzEtUsjvX/DKs24dIkuwjtuprwJJHsbyUbLApepYTR1BN4uHrg==
+yaml@^2.4.2:
+  version "2.8.2"
+  resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.8.2.tgz#5694f25eca0ce9c3e7a9d9e00ce0ddabbd9e35c5"
+  integrity sha512-mplynKqc1C2hTVYxd0PU2xQAc22TI1vShAYGksCCfxbn/dFwnHTNi1bvYsBTkhdUNtGIf5xNOg938rrSSYvS9A==
 
 yargs-parser@^20.2.2:
   version "20.2.9"