diff --git a/.changeset/forty-kings-search.md b/.changeset/forty-kings-search.md
new file mode 100644
index 0000000000..9236e1657a
--- /dev/null
+++ b/.changeset/forty-kings-search.md
@@ -0,0 +1,6 @@
+---
+'nextra': patch
+'nextra-theme-docs': patch
+---
+
+add `@types/github-slugger` instead of manually declaring type
diff --git a/packages/nextra-theme-docs/package.json b/packages/nextra-theme-docs/package.json
index fb486d6738..7bff197110 100644
--- a/packages/nextra-theme-docs/package.json
+++ b/packages/nextra-theme-docs/package.json
@@ -90,6 +90,7 @@
     "@tailwindcss/nesting": "^0.0.0-insiders.565cd3e",
     "@tailwindcss/typography": "^0.5.4",
     "@types/flexsearch": "^0.7.3",
+    "@types/github-slugger": "^1.3.0",
     "@types/react": "^18.0.15",
     "@types/react-dom": "^18.0.6",
     "autoprefixer": "^10.4.8",
diff --git a/packages/nextra-theme-docs/src/env.d.ts b/packages/nextra-theme-docs/src/env.d.ts
index f8811288ef..ba033a0260 100644
--- a/packages/nextra-theme-docs/src/env.d.ts
+++ b/packages/nextra-theme-docs/src/env.d.ts
@@ -1,9 +1,3 @@
-declare module 'github-slugger' {
-  export default class Slugger {
-    slug(data: string): string
-  }
-}
-
 declare module 'match-sorter'
 
 declare module 'title' {
diff --git a/packages/nextra/package.json b/packages/nextra/package.json
index e2363701de..be30d0bfba 100644
--- a/packages/nextra/package.json
+++ b/packages/nextra/package.json
@@ -97,6 +97,7 @@
     "arrowParens": "avoid"
   },
   "devDependencies": {
+    "@types/github-slugger": "^1.3.0",
     "@types/graceful-fs": "^4.1.5",
     "@types/mdast": "^3.0.10",
     "@types/react": "^18.0.15",
diff --git a/packages/nextra/src/env.d.ts b/packages/nextra/src/env.d.ts
index 1917323379..80e47252fb 100644
--- a/packages/nextra/src/env.d.ts
+++ b/packages/nextra/src/env.d.ts
@@ -1,9 +1,3 @@
-declare module 'github-slugger' {
-  export default class Slugger {
-    slug(data: string): string
-  }
-}
-
 declare module globalThis {
   import { PageMapItem } from './types'
   var __nextra_internal__: {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d3d44f2813..7f5392413f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -123,6 +123,7 @@ importers:
     specifiers:
       '@mdx-js/mdx': ^2.1.2
       '@napi-rs/simple-git': ^0.1.8
+      '@types/github-slugger': ^1.3.0
       '@types/graceful-fs': ^4.1.5
       '@types/mdast': ^3.0.10
       '@types/react': ^18.0.15
@@ -153,6 +154,7 @@ importers:
       shiki: 0.10.1
       slash: 3.0.0
     devDependencies:
+      '@types/github-slugger': 1.3.0
       '@types/graceful-fs': 4.1.5
       '@types/mdast': 3.0.10
       '@types/react': 18.0.15
@@ -221,6 +223,7 @@ importers:
       '@tailwindcss/nesting': ^0.0.0-insiders.565cd3e
       '@tailwindcss/typography': ^0.5.4
       '@types/flexsearch': ^0.7.3
+      '@types/github-slugger': ^1.3.0
       '@types/react': ^18.0.15
       '@types/react-dom': ^18.0.6
       autoprefixer: ^10.4.8
@@ -266,6 +269,7 @@ importers:
       '@tailwindcss/nesting': 0.0.0-insiders.565cd3e_postcss@8.4.14
       '@tailwindcss/typography': 0.5.4_tailwindcss@3.1.8
       '@types/flexsearch': 0.7.3
+      '@types/github-slugger': 1.3.0
       '@types/react': 18.0.15
       '@types/react-dom': 18.0.6
       autoprefixer: 10.4.8_postcss@8.4.14
@@ -1025,6 +1029,10 @@ packages:
     resolution: {integrity: sha512-HXwADeHEP4exXkCIwy2n1+i0f1ilP1ETQOH5KDOugjkTFZPntWo0Gr8stZOaebkxsdx+k0X/K6obU/+it07ocg==}
     dev: true
 
+  /@types/github-slugger/1.3.0:
+    resolution: {integrity: sha512-J/rMZa7RqiH/rT29TEVZO4nBoDP9XJOjnbbIofg7GQKs4JIduEO3WLpte+6WeUz/TcrXKlY+bM7FYrp8yFB+3g==}
+    dev: true
+
   /@types/graceful-fs/4.1.5:
     resolution: {integrity: sha512-anKkLmZZ+xm4p8JWBf4hElkM4XR+EZeA2M9BAkkTldmcyDY4mbdIJnRghDJH3Ov5ooY7/UAoENtmdMSkaAd7Cw==}
     dependencies: