diff --git a/packages/manager/package.json b/packages/manager/package.json
index 41241a56de8..21b07e4e746 100644
--- a/packages/manager/package.json
+++ b/packages/manager/package.json
@@ -25,6 +25,7 @@
     "@lukemorales/query-key-factory": "^1.3.4",
     "@mui/icons-material": "^5.14.7",
     "@mui/material": "^5.14.7",
+    "@mui/utils": "^5.14.7",
     "@mui/x-date-pickers": "^7.12.0",
     "@paypal/react-paypal-js": "^7.8.3",
     "@reach/tabs": "^0.10.5",
diff --git a/packages/ui/src/foundations/themes/index.ts b/packages/ui/src/foundations/themes/index.ts
index a874f0c0bba..c94d55ac8ae 100644
--- a/packages/ui/src/foundations/themes/index.ts
+++ b/packages/ui/src/foundations/themes/index.ts
@@ -1,4 +1,5 @@
 import { createTheme } from '@mui/material/styles';
+import { deepmerge } from '@mui/utils';
 
 // Themes & Brands
 import { darkTheme } from './dark';
@@ -107,4 +108,4 @@ declare module '@mui/material/styles/createTheme' {
 
 export const inputMaxWidth = _inputMaxWidth;
 export const light = createTheme(lightTheme);
-export const dark = createTheme(lightTheme, darkTheme);
+export const dark = createTheme(deepmerge(lightTheme, darkTheme));
diff --git a/yarn.lock b/yarn.lock
index 39b3c3fa612..4219a830d0d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1165,7 +1165,7 @@
   resolved "https://registry.yarnpkg.com/@mui/types/-/types-7.2.17.tgz#329826062d4079de5ea2b97007575cebbba1fdbc"
   integrity sha512-oyumoJgB6jDV8JFzRqjBo2daUuHpzDjoO/e3IrRhhHo/FxJlaVhET6mcNrKHUq2E+R+q3ql0qAtvQ4rfWHhAeQ==
 
-"@mui/utils@^5.16.6":
+"@mui/utils@^5.14.7", "@mui/utils@^5.16.6":
   version "5.16.6"
   resolved "https://registry.yarnpkg.com/@mui/utils/-/utils-5.16.6.tgz#905875bbc58d3dcc24531c3314a6807aba22a711"
   integrity sha512-tWiQqlhxAt3KENNiSRL+DIn9H5xNVK6Jjf70x3PnfQPz1MPBdh7yyIcAyVBT9xiw7hP3SomRhPR7hzBMBCjqEA==
@@ -10426,9 +10426,9 @@ yallist@^3.0.2:
   integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
 yaml@^1.10.0, yaml@^1.7.2, yaml@^2.3.0, yaml@~2.5.0:
-  version "2.5.1"
-  resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.5.1.tgz#c9772aacf62cb7494a95b0c4f1fb065b563db130"
-  integrity sha512-bLQOjaX/ADgQ20isPJRvF0iRUHIxVhYvr53Of7wGcWlO2jvtUlH5m87DsmulFVxRpNLOnI4tB6p/oh8D7kpn9Q==
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.6.0.tgz#14059ad9d0b1680d0f04d3a60fe00f3a857303c3"
+  integrity sha512-a6ae//JvKDEra2kdi1qzCyrJW/WZCgFi8ydDV+eXExl95t+5R+ijnqHJbz9tmMh8FUjx3iv2fCQ4dclAQlO2UQ==
 
 yargs-parser@^21.1.1:
   version "21.1.1"