diff --git a/app/composables/useMarkdown.ts b/app/composables/useMarkdown.ts
index 4f3cfe730..2af91f129 100644
--- a/app/composables/useMarkdown.ts
+++ b/app/composables/useMarkdown.ts
@@ -1,3 +1,4 @@
+import { regExpEscape } from '@li/regexp-escape-polyfill'
 import { decodeHtmlEntities } from '~/utils/formatters'
 
 interface UseMarkdownOptions {
@@ -45,10 +46,8 @@ function stripAndEscapeHtml(text: string, packageName?: string): string {
     stripped = stripped.trim()
     // Collapse multiple whitespace into single space
     stripped = stripped.replace(/\s+/g, ' ')
-    // Escape special regex characters in package name
-    const escapedName = packageName.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
     // Match package name at the start, optionally followed by: space, dash, colon, hyphen, or just space
-    const namePattern = new RegExp(`^${escapedName}\\s*[-:—]?\\s*`, 'i')
+    const namePattern = new RegExp(`^${regExpEscape(packageName)}\\s*[-:—]?\\s*`, 'i')
     stripped = stripped.replace(namePattern, '').trim()
   }
 
diff --git a/app/composables/useStructuredFilters.ts b/app/composables/useStructuredFilters.ts
index a33d4d150..bba08667c 100644
--- a/app/composables/useStructuredFilters.ts
+++ b/app/composables/useStructuredFilters.ts
@@ -17,6 +17,7 @@ import {
   parseSortOption,
   UPDATED_WITHIN_OPTIONS,
 } from '#shared/types/preferences'
+import { regExpEscape } from '@li/regexp-escape-polyfill'
 
 /**
  * Parsed search operators from text input
@@ -412,7 +413,9 @@ export function useStructuredFilters(options: UseStructuredFiltersOptions) {
 
   function removeKeyword(keyword: string) {
     filters.value.keywords = filters.value.keywords.filter(k => k !== keyword)
-    const newQ = searchQuery.value.replace(new RegExp(`keyword:${keyword}($| )`, 'g'), '').trim()
+    const newQ = searchQuery.value
+      .replace(new RegExp(`keyword:${regExpEscape(keyword)}($| )`, 'g'), '')
+      .trim()
     router.replace({ query: { ...route.query, q: newQ || undefined } })
     if (searchQueryModel) searchQueryModel.value = newQ
   }
diff --git a/package.json b/package.json
index 86c266870..f40f521a6 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,7 @@
     "@iconify-json/svg-spinners": "1.2.4",
     "@iconify-json/vscode-icons": "1.2.40",
     "@intlify/shared": "11.2.8",
+    "@li/regexp-escape-polyfill": "jsr:0.3.4",
     "@lunariajs/core": "https://pkg.pr.new/lunariajs/lunaria/@lunariajs/core@f07e1a3",
     "@nuxt/a11y": "1.0.0-alpha.1",
     "@nuxt/fonts": "0.13.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d90982664..aca71d386 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -53,6 +53,9 @@ importers:
       '@intlify/shared':
         specifier: 11.2.8
         version: 11.2.8
+      '@li/regexp-escape-polyfill':
+        specifier: jsr:0.3.4
+        version: '@jsr/li__regexp-escape-polyfill@0.3.4'
       '@lunariajs/core':
         specifier: https://pkg.pr.new/lunariajs/lunaria/@lunariajs/core@f07e1a3
         version: https://pkg.pr.new/lunariajs/lunaria/@lunariajs/core@f07e1a3
@@ -1857,6 +1860,9 @@ packages:
   '@jsr/deno__graph@0.86.9':
     resolution: {integrity: sha512-+qrrma5/bL+hcG20mfaEeC8SLopqoyd1RjcKFMRu++3SAXyrTKuvuIjBJCn/NyN7X+kV+QrJG67BCHX38Rzw+g==, tarball: https://npm.jsr.io/~/11/@jsr/deno__graph/0.86.9.tgz}
 
+  '@jsr/li__regexp-escape-polyfill@0.3.4':
+    resolution: {integrity: sha512-UGHzM9zAlRt0DUQIgsXAuXBd9jdzJ3t1v+fHsIcIj2fbUKplO9A8v2FE/w9KZo8hs79n5IamuBvqCTndGADM2Q==, tarball: https://npm.jsr.io/~/11/@jsr/li__regexp-escape-polyfill/0.3.4.tgz}
+
   '@jsr/std__bytes@1.0.6':
     resolution: {integrity: sha512-St6yKggjFGhxS52IFLJWvkchRFbAKg2Xh8UxA4S1EGz7GJ2Ui+ssDDldj/w2c8vCxvl6qgR0HaYbKeFJNqujmA==, tarball: https://npm.jsr.io/~/11/@jsr/std__bytes/1.0.6.tgz}
 
@@ -11425,6 +11431,8 @@ snapshots:
 
   '@jsr/deno__graph@0.86.9': {}
 
+  '@jsr/li__regexp-escape-polyfill@0.3.4': {}
+
   '@jsr/std__bytes@1.0.6': {}
 
   '@jsr/std__fmt@1.0.9': {}
diff --git a/shared/utils/dev-dependency.ts b/shared/utils/dev-dependency.ts
index f45449ba5..ae30d8855 100644
--- a/shared/utils/dev-dependency.ts
+++ b/shared/utils/dev-dependency.ts
@@ -1,3 +1,5 @@
+import { regExpEscape } from '@li/regexp-escape-polyfill'
+
 export type DevDependencySuggestionReason = 'known-package' | 'readme-hint'
 
 export interface DevDependencySuggestion {
@@ -59,15 +61,11 @@ function isKnownDevDependencyPackage(packageName: string): boolean {
   )
 }
 
-function escapeRegExp(text: string): string {
-  return text.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
-}
-
 function hasReadmeDevInstallHint(packageName: string, readmeContent?: string | null): boolean {
   if (!readmeContent) return false
 
-  const escapedName = escapeRegExp(packageName)
-  const escapedNpmName = escapeRegExp(`npm:${packageName}`)
+  const escapedName = regExpEscape(packageName)
+  const escapedNpmName = regExpEscape(`npm:${packageName}`)
   const packageSpec = `(?:${escapedName}|${escapedNpmName})(?:@[\\w.-]+)?`
 
   const patterns = [