diff --git a/war/package.json b/war/package.json
index 4cba67ddcd95..de467318cd00 100644
--- a/war/package.json
+++ b/war/package.json
@@ -37,7 +37,7 @@
     "globals": "15.6.0",
     "handlebars-loader": "1.7.3",
     "mini-css-extract-plugin": "2.9.0",
-    "postcss": "8.4.38",
+    "postcss": "8.4.39",
     "postcss-loader": "8.1.1",
     "postcss-preset-env": "9.5.14",
     "postcss-scss": "4.0.9",
diff --git a/war/yarn.lock b/war/yarn.lock
index 4ef98df584ab..abd0aeb78e1f 100644
--- a/war/yarn.lock
+++ b/war/yarn.lock
@@ -4413,7 +4413,7 @@ __metadata:
     jquery: "npm:3.7.1"
     lodash: "npm:4.17.21"
     mini-css-extract-plugin: "npm:2.9.0"
-    postcss: "npm:8.4.38"
+    postcss: "npm:8.4.39"
     postcss-loader: "npm:8.1.1"
     postcss-preset-env: "npm:9.5.14"
     postcss-scss: "npm:4.0.9"
@@ -6092,14 +6092,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.4.38, postcss@npm:^8.4.33, postcss@npm:^8.4.38":
-  version: 8.4.38
-  resolution: "postcss@npm:8.4.38"
+"postcss@npm:8.4.39, postcss@npm:^8.4.33, postcss@npm:^8.4.38":
+  version: 8.4.39
+  resolution: "postcss@npm:8.4.39"
   dependencies:
     nanoid: "npm:^3.3.7"
-    picocolors: "npm:^1.0.0"
+    picocolors: "npm:^1.0.1"
     source-map-js: "npm:^1.2.0"
-  checksum: 10c0/955407b8f70cf0c14acf35dab3615899a2a60a26718a63c848cf3c29f2467b0533991b985a2b994430d890bd7ec2b1963e36352b0774a19143b5f591540f7c06
+  checksum: 10c0/16f5ac3c4e32ee76d1582b3c0dcf1a1fdb91334a45ad755eeb881ccc50318fb8d64047de4f1601ac96e30061df203f0f2e2edbdc0bfc49b9c57bc9fb9bedaea3
   languageName: node
   linkType: hard