diff --git a/ui/package.json b/ui/package.json
index 38a1b90f9716e..16f717c4e8a69 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -102,7 +102,7 @@
     "jest-junit": "^6.4.0",
     "jest-transform-css": "^2.0.0",
     "monaco-editor-webpack-plugin": "^7.0.0",
-    "postcss": "^8.4.36",
+    "postcss": "^8.4.37",
     "prettier": "1.19",
     "raw-loader": "^0.5.1",
     "react-test-renderer": "16.8.3",
diff --git a/ui/yarn.lock b/ui/yarn.lock
index 7ff26ada6213c..bd3e5d31ade89 100644
--- a/ui/yarn.lock
+++ b/ui/yarn.lock
@@ -7128,14 +7128,14 @@ postcss@^7.0.1:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.4.36:
-  version "8.4.36"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.36.tgz#dba513c3c3733c44e0288a712894f8910bbaabc6"
-  integrity sha512-/n7eumA6ZjFHAsbX30yhHup/IMkOmlmvtEi7P+6RMYf+bGJSUHc3geH4a0NSZxAz/RJfiS9tooCTs9LAVYUZKw==
+postcss@^8.4.37:
+  version "8.4.37"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.37.tgz#4505f992cd0c20e03d25f13b31901640b2db731a"
+  integrity sha512-7iB/v/r7Woof0glKLH8b1SPHrsX7uhdO+Geb41QpF/+mWZHU3uxxSlN+UXGVit1PawOYDToO+AbZzhBzWRDwbQ==
   dependencies:
     nanoid "^3.3.7"
     picocolors "^1.0.0"
-    source-map-js "^1.1.0"
+    source-map-js "^1.2.0"
 
 prelude-ls@~1.1.2:
   version "1.1.2"
@@ -8682,10 +8682,10 @@ source-list-map@^2.0.0, source-list-map@^2.0.1:
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
   integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
 
-"source-map-js@>=0.6.2 <2.0.0", source-map-js@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.1.0.tgz#9e7d5cb46f0689fb6691b30f226937558d0fa94b"
-  integrity sha512-9vC2SfsJzlej6MAaMPLu8HiBSHGdRAJ9hVFYN1ibZoNkeanmDmLUcIrj6G9DGL7XMJ54AKg/G75akXl1/izTOw==
+"source-map-js@>=0.6.2 <2.0.0", source-map-js@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.2.0.tgz#16b809c162517b5b8c3e7dcd315a2a5c2612b2af"
+  integrity sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==
 
 source-map-loader@^0.2.3:
   version "0.2.4"