diff --git a/packages/docusaurus-mdx-loader/package.json b/packages/docusaurus-mdx-loader/package.json
index 6d4a223338ea..5da0d4ecfae2 100644
--- a/packages/docusaurus-mdx-loader/package.json
+++ b/packages/docusaurus-mdx-loader/package.json
@@ -40,7 +40,6 @@
     "@docusaurus/types": "^3.0.0-alpha.0",
     "@types/escape-html": "^1.0.2",
     "@types/mdast": "^3.0.10",
-    "@types/mermaid": "^8.2.9",
     "@types/stringify-object": "^3.3.1",
     "@types/unist": "^2.0.6",
     "rehype-stringify": "^8.0.0",
diff --git a/packages/docusaurus-theme-mermaid/package.json b/packages/docusaurus-theme-mermaid/package.json
index a09f30ebd696..a0994db2f514 100644
--- a/packages/docusaurus-theme-mermaid/package.json
+++ b/packages/docusaurus-theme-mermaid/package.json
@@ -39,7 +39,7 @@
     "@docusaurus/types": "^3.0.0-alpha.0",
     "@docusaurus/utils-validation": "^3.0.0-alpha.0",
     "@mdx-js/react": "^1.6.22",
-    "mermaid": "^9.2.0",
+    "mermaid": "^9.2.2",
     "tslib": "^2.4.0"
   },
   "devDependencies": {
diff --git a/packages/docusaurus-theme-mermaid/src/client/index.ts b/packages/docusaurus-theme-mermaid/src/client/index.ts
index e432d6a81a99..f8302085c441 100644
--- a/packages/docusaurus-theme-mermaid/src/client/index.ts
+++ b/packages/docusaurus-theme-mermaid/src/client/index.ts
@@ -7,8 +7,7 @@
 
 import {useMemo} from 'react';
 import {useColorMode, useThemeConfig} from '@docusaurus/theme-common';
-import mermaid from 'mermaid';
-import type mermaidAPI from 'mermaid/mermaidAPI';
+import mermaid, {type MermaidConfig} from 'mermaid';
 import type {ThemeConfig} from '@docusaurus/theme-mermaid';
 
 // Stable className to allow users to easily target with CSS
@@ -18,7 +17,7 @@ export function useMermaidThemeConfig(): ThemeConfig['mermaid'] {
   return (useThemeConfig() as unknown as ThemeConfig).mermaid;
 }
 
-export function useMermaidConfig(): mermaidAPI.Config {
+export function useMermaidConfig(): MermaidConfig {
   const {colorMode} = useColorMode();
   const mermaidThemeConfig = useMermaidThemeConfig();
 
@@ -33,7 +32,7 @@ export function useMermaidConfig(): mermaidAPI.Config {
 
 export function useMermaidSvg(
   txt: string,
-  mermaidConfigParam?: mermaidAPI.Config,
+  mermaidConfigParam?: MermaidConfig,
 ): string {
   /*
   For flexibility, we allow the hook to receive a custom Mermaid config
diff --git a/packages/docusaurus-theme-mermaid/src/validateThemeConfig.ts b/packages/docusaurus-theme-mermaid/src/validateThemeConfig.ts
index c68201f225dd..ceaf3b9ce7cf 100644
--- a/packages/docusaurus-theme-mermaid/src/validateThemeConfig.ts
+++ b/packages/docusaurus-theme-mermaid/src/validateThemeConfig.ts
@@ -7,14 +7,13 @@
 
 import {Joi} from '@docusaurus/utils-validation';
 import type {ThemeConfig} from '@docusaurus/theme-mermaid';
-import type mermaidAPI from 'mermaid/mermaidAPI';
 import type {ThemeConfigValidationContext} from '@docusaurus/types';
 
 export const DEFAULT_THEME_CONFIG: ThemeConfig = {
   mermaid: {
     theme: {
-      dark: 'dark' as mermaidAPI.Theme,
-      light: 'default' as mermaidAPI.Theme,
+      dark: 'dark',
+      light: 'default',
     },
     options: {},
   },
diff --git a/yarn.lock b/yarn.lock
index f63156e49646..7f13deddd16f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3659,11 +3659,6 @@
   dependencies:
     "@types/react" "*"
 
-"@types/mermaid@^8.2.9":
-  version "8.2.9"
-  resolved "https://registry.yarnpkg.com/@types/mermaid/-/mermaid-8.2.9.tgz#1844505dcffcd47703e94628a6200583d35c2c76"
-  integrity sha512-f1i8fNoVFVJXedk+R7GcEk4KoOWzWAU3CzFqlVw1qWKktfsataBERezCz1pOdKy8Ec02ZdPQXGM7NU2lPHABYQ==
-
 "@types/micromatch@^4.0.2":
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/@types/micromatch/-/micromatch-4.0.2.tgz#ce29c8b166a73bf980a5727b1e4a4d099965151d"
@@ -11117,10 +11112,10 @@ merge2@^1.3.0, merge2@^1.4.1:
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.4.1.tgz#4368892f885e907455a6fd7dc55c0c9d404990ae"
   integrity sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==
 
-mermaid@9.2.0:
-  version "9.2.0"
-  resolved "https://registry.yarnpkg.com/mermaid/-/mermaid-9.2.0.tgz#e73bfe252a8cb12427fcb9cb38867d8f2d1a77f0"
-  integrity sha512-iWKTBjHoPUSs+mJMpZ5+K9xg97KflKjbv91Bu42yK2jjz4wX4Nt1eshi+bmmFWAhn7f2R0X55hlxxbSxdp0QYA==
+mermaid@^9.2.2:
+  version "9.2.2"
+  resolved "https://registry.yarnpkg.com/mermaid/-/mermaid-9.2.2.tgz#73cca1f0b74e7e674c0de3519d7e7e8ea83bea4a"
+  integrity sha512-6s7eKMqFJGS+0MYjmx8f6ZigqKBJVoSx5ql2gw6a4Aa+WJ49QiEJg7gPwywaBg3DZMs79UP7trESp4+jmaQccw==
   dependencies:
     "@braintree/sanitize-url" "^6.0.0"
     d3 "^7.0.0"