diff --git a/package.json b/package.json
index f928700..e47979f 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@tailwindcss/typography": "0.5.15",
     "autoprefixer": "10.4.20",
     "bigpicture": "2.6.2",
-    "postcss": "8.4.45",
+    "postcss": "8.4.47",
     "postcss-cli": "11.0.0",
     "postcss-import": "16.1.0",
     "postcss-nested": "6.2.0",
diff --git a/yarn.lock b/yarn.lock
index 31c99ad..f76c451 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1202,7 +1202,7 @@ __metadata:
     "@tailwindcss/typography": "npm:0.5.15"
     autoprefixer: "npm:10.4.20"
     bigpicture: "npm:2.6.2"
-    postcss: "npm:8.4.45"
+    postcss: "npm:8.4.47"
     postcss-cli: "npm:11.0.0"
     postcss-import: "npm:16.1.0"
     postcss-nested: "npm:6.2.0"
@@ -1923,6 +1923,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"picocolors@npm:^1.1.0":
+  version: 1.1.0
+  resolution: "picocolors@npm:1.1.0"
+  checksum: 10c0/86946f6032148801ef09c051c6fb13b5cf942eaf147e30ea79edb91dd32d700934edebe782a1078ff859fb2b816792e97ef4dab03d7f0b804f6b01a0df35e023
+  languageName: node
+  linkType: hard
+
 "picomatch@npm:^2.0.4, picomatch@npm:^2.2.1, picomatch@npm:^2.3.1":
   version: 2.3.1
   resolution: "picomatch@npm:2.3.1"
@@ -2112,14 +2119,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.4.45":
-  version: 8.4.45
-  resolution: "postcss@npm:8.4.45"
+"postcss@npm:8.4.47":
+  version: 8.4.47
+  resolution: "postcss@npm:8.4.47"
   dependencies:
     nanoid: "npm:^3.3.7"
-    picocolors: "npm:^1.0.1"
-    source-map-js: "npm:^1.2.0"
-  checksum: 10c0/ad6f8b9b1157d678560373696109745ab97a947d449f8a997acac41c7f1e4c0f3ca4b092d6df1387f430f2c9a319987b1780dbdc27e35800a88cde9b606c1e8f
+    picocolors: "npm:^1.1.0"
+    source-map-js: "npm:^1.2.1"
+  checksum: 10c0/929f68b5081b7202709456532cee2a145c1843d391508c5a09de2517e8c4791638f71dd63b1898dba6712f8839d7a6da046c72a5e44c162e908f5911f57b5f44
   languageName: node
   linkType: hard
 
@@ -2475,6 +2482,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"source-map-js@npm:^1.2.1":
+  version: 1.2.1
+  resolution: "source-map-js@npm:1.2.1"
+  checksum: 10c0/7bda1fc4c197e3c6ff17de1b8b2c20e60af81b63a52cb32ec5a5d67a20a7d42651e2cb34ebe93833c5a2a084377e17455854fee3e21e7925c64a51b6a52b0faf
+  languageName: node
+  linkType: hard
+
 "sprintf-js@npm:^1.1.3":
   version: 1.1.3
   resolution: "sprintf-js@npm:1.1.3"