diff --git a/package.json b/package.json
index 628fcecd2..aec72da87 100644
--- a/package.json
+++ b/package.json
@@ -110,12 +110,8 @@
     "vitepress": "^1.0.0-alpha.28",
     "vitepress-plugin-mermaid": "^2.0.8",
     "vitepress-plugin-search": "^1.0.4-alpha.15",
-    "vitest": "^0.25.1"
+    "vitest": "^0.25.3"
   },
-  "sideEffects": [
-    "**/*.css",
-    "**/*.scss"
-  ],
   "volta": {
     "node": "18.12.1"
   }
diff --git a/packages/mermaid/src/docs/redirect.spec.ts b/packages/mermaid/src/docs/.vitepress/theme/redirect.spec.ts
similarity index 96%
rename from packages/mermaid/src/docs/redirect.spec.ts
rename to packages/mermaid/src/docs/.vitepress/theme/redirect.spec.ts
index 6bf25c03b..c26364108 100644
--- a/packages/mermaid/src/docs/redirect.spec.ts
+++ b/packages/mermaid/src/docs/.vitepress/theme/redirect.spec.ts
@@ -2,7 +2,7 @@
 // Update https://github.com/mermaid-js/mermaid/blob/18c27c6f1d0537a738cbd95898df301b83c38ffc/packages/mermaid/src/docs.mts#L246 once fixed
 
 import { expect, test } from 'vitest';
-import { getRedirect } from './.vitepress/theme/redirect';
+import { getRedirect } from './redirect';
 
 test.each([
   ['http://localhost:1234/mermaid/#/flowchart.md', 'syntax/flowchart.html'],
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5de78bdb1..ebb71f65e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -173,8 +173,8 @@ importers:
         specifier: ^1.0.4-alpha.15
         version: 1.0.4-alpha.15_s3edpouswd4dgoi2en7bdlrp54
       vitest:
-        specifier: ^0.25.1
-        version: 0.25.1_iyb77cyw3lw7duusvxyjdsflhu
+        specifier: ^0.25.3
+        version: 0.25.3_iyb77cyw3lw7duusvxyjdsflhu
 
   packages/mermaid:
     dependencies:
@@ -11214,6 +11214,54 @@ packages:
       - terser
     dev: true
 
+  /vitest/0.25.3_iyb77cyw3lw7duusvxyjdsflhu:
+    resolution: {integrity: sha512-/UzHfXIKsELZhL7OaM2xFlRF8HRZgAHtPctacvNK8H4vOcbJJAMEgbWNGSAK7Y9b1NBe5SeM7VTuz2RsTHFJJA==}
+    engines: {node: '>=v14.16.0'}
+    hasBin: true
+    peerDependencies:
+      '@edge-runtime/vm': '*'
+      '@vitest/browser': '*'
+      '@vitest/ui': '*'
+      happy-dom: '*'
+      jsdom: '*'
+    peerDependenciesMeta:
+      '@edge-runtime/vm':
+        optional: true
+      '@vitest/browser':
+        optional: true
+      '@vitest/ui':
+        optional: true
+      happy-dom:
+        optional: true
+      jsdom:
+        optional: true
+    dependencies:
+      '@types/chai': 4.3.3
+      '@types/chai-subset': 1.3.3
+      '@types/node': 18.11.9
+      '@vitest/ui': 0.25.1
+      acorn: 8.8.0
+      acorn-walk: 8.2.0
+      chai: 4.3.6
+      debug: 4.3.4
+      happy-dom: 6.0.4
+      jsdom: 20.0.2
+      local-pkg: 0.4.2
+      source-map: 0.6.1
+      strip-literal: 0.4.2
+      tinybench: 2.3.1
+      tinypool: 0.3.0
+      tinyspy: 1.0.2
+      vite: 3.2.3_@types+node@18.11.9
+    transitivePeerDependencies:
+      - less
+      - sass
+      - stylus
+      - sugarss
+      - supports-color
+      - terser
+    dev: true
+
   /vm2/3.9.11:
     resolution: {integrity: sha512-PFG8iJRSjvvBdisowQ7iVF580DXb1uCIiGaXgm7tynMR1uTBlv7UJlB1zdv5KJ+Tmq1f0Upnj3fayoEOPpCBKg==}
     engines: {node: '>=6.0'}