diff --git a/package.json b/package.json
index beb183c..30a6005 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "@types/node": "16.11.11",
     "babel-plugin-tester": "10.1.0",
     "jest": "27.1.0",
-    "postcss": "8.3.11",
+    "postcss": "8.4.21",
     "prettier": "2.3.2",
     "tailwindcss": "2.2.2",
     "ts-jest": "27.0.4",
diff --git a/yarn.lock b/yarn.lock
index 3293d60..5ef3b6e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3812,12 +3812,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nanoid@npm:^3.1.30":
-  version: 3.1.30
-  resolution: "nanoid@npm:3.1.30"
+"nanoid@npm:^3.3.4":
+  version: 3.3.4
+  resolution: "nanoid@npm:3.3.4"
   bin:
     nanoid: bin/nanoid.cjs
-  checksum: 440f685e9890bd96433cf6c01535165b1e9677ba4a5c4179e1a61612f0b4c428cc628425fe232038b93304d15b191892d7ced9503fa558d1296e4e95fe80a627
+  checksum: 88147ef3d52ded1487e4d2373697126b7b872bd5ac0d20b52a2ef780b2695d368569a2e3a6f289ef6fdf836aa8018ff2d84f5cdf8b21da8bce8766bad9e35256
   languageName: node
   linkType: hard
 
@@ -4188,14 +4188,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.3.11":
-  version: 8.3.11
-  resolution: "postcss@npm:8.3.11"
+"postcss@npm:8.4.21":
+  version: 8.4.21
+  resolution: "postcss@npm:8.4.21"
   dependencies:
-    nanoid: ^3.1.30
+    nanoid: ^3.3.4
     picocolors: ^1.0.0
-    source-map-js: ^0.6.2
-  checksum: fa1530f7e1817bcaf40b34db246d0c49e42daf12719abd4a3a1b5886491cca125af6b21ccdfc24a074ea9b6b73a6677e1478906adb732b2bd5208077a64473a6
+    source-map-js: ^1.0.2
+  checksum: 76b9cefb74af346af7ec82c680a8448fc3472deaf19cf9d5d40ebf597e75f2e8ee54b8c83dd772db994276b3d3729628a21147f409d55599a08775b11f9447cd
   languageName: node
   linkType: hard
 
@@ -4609,6 +4609,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"source-map-js@npm:^1.0.2":
+  version: 1.0.2
+  resolution: "source-map-js@npm:1.0.2"
+  checksum: 3bb232796ad9b71bad151cb30c7fc1a2afdaf5bcfd4aa7806f56a2d4ff4824e1481e960436c5e9ec26e8c1ae129aee8107df0859c15b1ccada31a9a7ef254abc
+  languageName: node
+  linkType: hard
+
 "source-map-support@npm:^0.5.6":
   version: 0.5.19
   resolution: "source-map-support@npm:0.5.19"
@@ -4828,7 +4835,7 @@ __metadata:
     babel-plugin-macros: ^3.1.0
     babel-plugin-tester: 10.1.0
     jest: 27.1.0
-    postcss: 8.3.11
+    postcss: 8.4.21
     prettier: 2.3.2
     tailwindcss: 2.2.2
     ts-jest: 27.0.4