diff --git a/package.json b/package.json
index 91a65aabfb..e4a49950d2 100644
--- a/package.json
+++ b/package.json
@@ -234,7 +234,7 @@
     "nx": "19.5.3",
     "nx-cloud": "19.0.0",
     "persistgraphql": "^0.3.11",
-    "postcss": "8.4.44",
+    "postcss": "8.4.45",
     "react-test-renderer": "^18.3.1",
     "reflect-metadata": "^0.2.1",
     "server-only": "^0.0.1",
diff --git a/packages/fxa-settings/package.json b/packages/fxa-settings/package.json
index 8234b9a79b..08992ca07a 100644
--- a/packages/fxa-settings/package.json
+++ b/packages/fxa-settings/package.json
@@ -161,7 +161,7 @@
     "jest-watch-typeahead": "^1.0.0",
     "lodash.groupby": "^4.6.0",
     "mini-css-extract-plugin": "^2.9.0",
-    "postcss": "^8.4.44",
+    "postcss": "^8.4.45",
     "postcss-flexbugs-fixes": "^5.0.2",
     "postcss-loader": "^8.1.1",
     "postcss-normalize": "^10.0.1",
diff --git a/yarn.lock b/yarn.lock
index aaaa23ba1e..01bb29c5b6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -35837,9 +35837,9 @@ __metadata:
   linkType: hard
 
 "dset@npm:^3.1.2":
-  version: 3.1.2
-  resolution: "dset@npm:3.1.2"
-  checksum: 4f8066f517aa0a70af688c66e9a0a5590f0aada76f6edc7ba9ddb309e27d3a6d65c0a2e31ab2a84005d4c791e5327773cdde59b8ab169050330a0dc283663e87
+  version: 3.1.4
+  resolution: "dset@npm:3.1.4"
+  checksum: 9a7677e9ffd3c13ad850f7cf367aa94b39984006510e84c3c09b7b88bba0a5b3b7196d85a99d0c4cae4e47d67bdeca43dc1834a41d80f31bcdc86dd26121ecec
   languageName: node
   linkType: hard
 
@@ -41434,7 +41434,7 @@ fsevents@~2.1.1:
     nx: 18.3.1
     persistgraphql: ^0.3.11
     pm2: ^5.3.0
-    postcss: ^8.4.44
+    postcss: ^8.4.45
     postcss-assets: ^6.0.0
     postcss-flexbugs-fixes: ^5.0.2
     postcss-import: ^16.1.0
@@ -41708,7 +41708,7 @@ fsevents@~2.1.1:
     passport-jwt: ^4.0.1
     persistgraphql: ^0.3.11
     pm2: ^5.3.0
-    postcss: 8.4.44
+    postcss: 8.4.45
     prettier: ^2.6.2
     react: 18.3.1
     react-dom: 18.3.1
@@ -58386,14 +58386,14 @@ fsevents@~2.1.1:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.4.44":
-  version: 8.4.44
-  resolution: "postcss@npm:8.4.44"
+"postcss@npm:8.4.45, postcss@npm:^8.4.45":
+  version: 8.4.45
+  resolution: "postcss@npm:8.4.45"
   dependencies:
     nanoid: ^3.3.7
     picocolors: ^1.0.1
     source-map-js: ^1.2.0
-  checksum: 64d9ce78253696bb64e608a54b362c9ddb537d3b38b58223ebce8260d6110d4e798ef1b3d57d8c28131417d9809187fd51d5c4263113536363444f8635e11bdb
+  checksum: 3223cdad4a9392c0b334ee3ee7e4e8041c631cb6160609cef83c18d2b2580e931dd8068ab13cc6000c1a254d57492ac6c38717efc397c5dcc9756d06bc9c44f3
   languageName: node
   linkType: hard
 
@@ -58485,17 +58485,6 @@ fsevents@~2.1.1:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.4.44":
-  version: 8.4.45
-  resolution: "postcss@npm:8.4.45"
-  dependencies:
-    nanoid: ^3.3.7
-    picocolors: ^1.0.1
-    source-map-js: ^1.2.0
-  checksum: 3223cdad4a9392c0b334ee3ee7e4e8041c631cb6160609cef83c18d2b2580e931dd8068ab13cc6000c1a254d57492ac6c38717efc397c5dcc9756d06bc9c44f3
-  languageName: node
-  linkType: hard
-
 "postgres-array@npm:~2.0.0":
   version: 2.0.0
   resolution: "postgres-array@npm:2.0.0"