diff --git a/package.json b/package.json
index 94cbd10f..3d884b58 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
         "gulp-util": "3.0.8",
         "gulp-watch": "5.0.1",
         "gulp-zip": "5.1.0",
-        "postcss": "8.2.15",
+        "postcss": "8.3.0",
         "postcss-color-mod-function": "3.0.3",
         "postcss-easy-import": "3.0.0"
     },
diff --git a/yarn.lock b/yarn.lock
index 0389804d..d0474ff1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -570,12 +570,12 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-beeper@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/beeper/-/beeper-3.0.0.tgz#d3f84c2224049cd69faee935bd74b1c331d89bdc"
-  integrity sha512-8d0BXEuBIiPfmKvATnSCN58sGKCB3vy+lwORdSvfC5uN6OMlPj9/aVMXsmvt5dIvjjyxiuKYfMVWpiAh/kJr5w==
+beeper@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/beeper/-/beeper-2.1.0.tgz#3151990e42de31387909fdcc2c12623eb6eefb16"
+  integrity sha512-85+CcymhlP0jM4fs4ZMiMRl58VthoN9NRdvi+knXiQpP2UggkSre+A9rOZ0c2g2Vh+pEF5ZAlT+k8dsJNoanAA==
   dependencies:
-    yoctodelay "^1.2.0"
+    yoctodelay "^1.1.0"
 
 beeper@^1.0.0:
   version "1.1.1"
@@ -4205,14 +4205,14 @@ postcss-values-parser@^2.0.0:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss@8.2.15:
-  version "8.2.15"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.15.tgz#9e66ccf07292817d226fc315cbbf9bc148fbca65"
-  integrity sha512-2zO3b26eJD/8rb106Qu2o7Qgg52ND5HPjcyQiK2B98O388h43A448LCslC0dI2P97wCAQRJsFvwTRcXxTKds+Q==
+postcss@8.3.0:
+  version "8.3.0"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.0.tgz#b1a713f6172ca427e3f05ef1303de8b65683325f"
+  integrity sha512-+ogXpdAjWGa+fdYY5BQ96V/6tAo+TdSSIMP5huJBIygdWwKtVoB5JWZ7yUd4xZ8r+8Kvvx4nyg/PQ071H4UtcQ==
   dependencies:
     colorette "^1.2.2"
     nanoid "^3.1.23"
-    source-map "^0.6.1"
+    source-map-js "^0.6.2"
 
 postcss@^6.0.1, postcss@^6.0.11:
   version "6.0.23"
@@ -4751,6 +4751,11 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
+source-map-js@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-0.6.2.tgz#0bb5de631b41cfbda6cfba8bd05a80efdfd2385e"
+  integrity sha512-/3GptzWzu0+0MBQFrDKzw/DvvMTUORvgY6k6jd/VS6iCR4RDTKWH6v6WPwQoUO8667uQEf9Oe38DxAYWY5F/Ug==
+
 source-map-resolve@^0.5.0:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.3.tgz#190866bece7553e1f8f267a2ee82c606b5509a1a"
@@ -5566,7 +5571,7 @@ yazl@^2.5.1:
   dependencies:
     buffer-crc32 "~0.2.3"
 
-yoctodelay@^1.2.0:
+yoctodelay@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/yoctodelay/-/yoctodelay-1.2.0.tgz#0d020c8bcec22989369db31e5d352acc6a13eda8"
   integrity sha512-12y/P9MSig9/5BEhBgylss+fkHiCRZCvYR81eH35NW9uw801cvJt31EAV+WOLcwZRZbLiIQl/hxcdXXXFmGvXg==