diff --git a/src/Serilog.Ui.Web/package.json b/src/Serilog.Ui.Web/package.json
index 13af68ca..679d72d4 100644
--- a/src/Serilog.Ui.Web/package.json
+++ b/src/Serilog.Ui.Web/package.json
@@ -51,7 +51,7 @@
     "eslint-plugin-testing-library": "^7.16.2",
     "happy-dom": "^20.9.0",
     "msw": "^2.14.6",
-    "postcss": "^8.5.14",
+    "postcss": "^8.5.23",
     "postcss-preset-mantine": "^1.18.0",
     "postcss-simple-vars": "^7.0.1",
     "shiki": "^4.0.2",
diff --git a/src/Serilog.Ui.Web/yarn.lock b/src/Serilog.Ui.Web/yarn.lock
index 64a59df8..5acffda8 100644
--- a/src/Serilog.Ui.Web/yarn.lock
+++ b/src/Serilog.Ui.Web/yarn.lock
@@ -5021,6 +5021,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"nanoid@npm:^3.3.16":
+  version: 3.3.18
+  resolution: "nanoid@npm:3.3.18"
+  bin:
+    nanoid: bin/nanoid.cjs
+  checksum: 10c0/b994b4e396730f8be2520923284e2040d61eaee55cc6d4935ef6d38d34bafdc46133eda4d3faea5073bda545aa6079d82b886caeac5c731cf9ac18bcc1301425
+  languageName: node
+  linkType: hard
+
 "natural-compare@npm:^1.4.0":
   version: 1.4.0
   resolution: "natural-compare@npm:1.4.0"
@@ -5414,6 +5423,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.5.23":
+  version: 8.5.23
+  resolution: "postcss@npm:8.5.23"
+  dependencies:
+    nanoid: "npm:^3.3.16"
+    picocolors: "npm:^1.1.1"
+    source-map-js: "npm:^1.2.1"
+  checksum: 10c0/ed714e635b330bb42666ecdd0c0b4f30224ded15b0b0052d6bc2b92832f2cf17d1c1141359453f96f0a84f8fbf4c405a74df187f559163b8f31131b2535455aa
+  languageName: node
+  linkType: hard
+
 "prelude-ls@npm:^1.2.1":
   version: 1.2.1
   resolution: "prelude-ls@npm:1.2.1"
@@ -5940,7 +5960,7 @@ __metadata:
     happy-dom: "npm:^20.9.0"
     jose: "npm:^6.2.3"
     msw: "npm:^2.14.6"
-    postcss: "npm:^8.5.14"
+    postcss: "npm:^8.5.23"
     postcss-preset-mantine: "npm:^1.18.0"
     postcss-simple-vars: "npm:^7.0.1"
     react: "npm:^19.2.6"