diff --git a/src/components/editor/document-renderer-pane/document-render-pane.tsx b/src/components/editor/document-renderer-pane/document-render-pane.tsx
index cbf7638c51..55e89359f1 100644
--- a/src/components/editor/document-renderer-pane/document-render-pane.tsx
+++ b/src/components/editor/document-renderer-pane/document-render-pane.tsx
@@ -8,7 +8,7 @@ import React, { RefObject, useState } from 'react'
 import { Dropdown } from 'react-bootstrap'
 import { useSelector } from 'react-redux'
 import useResizeObserver from 'use-resize-observer'
-import { TocAst } from '../../../external-types/markdown-it-toc-done-right/interface'
+import { TocAst } from 'markdown-it-toc-done-right'
 import { ApplicationState } from '../../../redux'
 import { ForkAwesomeIcon } from '../../common/fork-awesome/fork-awesome-icon'
 import { ShowIf } from '../../common/show-if/show-if'
diff --git a/src/components/editor/table-of-contents/table-of-contents.tsx b/src/components/editor/table-of-contents/table-of-contents.tsx
index 799b32b5ba..7e67e7d5cf 100644
--- a/src/components/editor/table-of-contents/table-of-contents.tsx
+++ b/src/components/editor/table-of-contents/table-of-contents.tsx
@@ -6,7 +6,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 import React, { Fragment, ReactElement, useMemo } from 'react'
 import { Trans, useTranslation } from 'react-i18next'
-import { TocAst } from '../../../external-types/markdown-it-toc-done-right/interface'
+import { TocAst } from 'markdown-it-toc-done-right'
 import { ShowIf } from '../../common/show-if/show-if'
 import './table-of-contents.scss'
 
diff --git a/src/components/markdown-renderer/full-markdown-renderer.tsx b/src/components/markdown-renderer/full-markdown-renderer.tsx
index 468f36d816..411160cdcf 100644
--- a/src/components/markdown-renderer/full-markdown-renderer.tsx
+++ b/src/components/markdown-renderer/full-markdown-renderer.tsx
@@ -7,7 +7,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import React, { useCallback, useMemo, useRef, useState } from 'react'
 import { Alert } from 'react-bootstrap'
 import { Trans } from 'react-i18next'
-import { TocAst } from '../../external-types/markdown-it-toc-done-right/interface'
+import { TocAst } from 'markdown-it-toc-done-right'
 import { InternalLink } from '../common/links/internal-link'
 import { ShowIf } from '../common/show-if/show-if'
 import { RawYAMLMetadata, YAMLMetaData } from '../editor/yaml-metadata/yaml-metadata'
diff --git a/src/components/markdown-renderer/hooks/use-post-toc-ast-on-change.ts b/src/components/markdown-renderer/hooks/use-post-toc-ast-on-change.ts
index d1e0d57702..fe8969ecad 100644
--- a/src/components/markdown-renderer/hooks/use-post-toc-ast-on-change.ts
+++ b/src/components/markdown-renderer/hooks/use-post-toc-ast-on-change.ts
@@ -6,7 +6,7 @@
 
 import equal from 'fast-deep-equal'
 import { RefObject, useEffect, useRef } from 'react'
-import { TocAst } from '../../../external-types/markdown-it-toc-done-right/interface'
+import { TocAst } from 'markdown-it-toc-done-right'
 
 export const usePostTocAstOnChange = (tocAst: RefObject<TocAst|undefined>, onTocChange?: (ast: TocAst) => void): void => {
   const lastTocAst = useRef<TocAst>()
diff --git a/src/components/markdown-renderer/markdown-it-configurator/FullMarkdownItConfigurator.tsx b/src/components/markdown-renderer/markdown-it-configurator/FullMarkdownItConfigurator.tsx
index a6debc4a54..2a7fdb2eee 100644
--- a/src/components/markdown-renderer/markdown-it-configurator/FullMarkdownItConfigurator.tsx
+++ b/src/components/markdown-renderer/markdown-it-configurator/FullMarkdownItConfigurator.tsx
@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 */
 
 import MarkdownIt from 'markdown-it'
-import { TocAst } from '../../../external-types/markdown-it-toc-done-right/interface'
+import { TocAst } from 'markdown-it-toc-done-right'
 import { RawYAMLMetadata } from '../../editor/yaml-metadata/yaml-metadata'
 import { documentToc } from '../markdown-it-plugins/document-toc'
 import { frontmatterExtract } from '../markdown-it-plugins/frontmatter'
diff --git a/src/components/markdown-renderer/markdown-it-plugins/document-toc.ts b/src/components/markdown-renderer/markdown-it-plugins/document-toc.ts
index 8042f148fe..12c7ecb06a 100644
--- a/src/components/markdown-renderer/markdown-it-plugins/document-toc.ts
+++ b/src/components/markdown-renderer/markdown-it-plugins/document-toc.ts
@@ -5,13 +5,12 @@
  */
 
 import MarkdownIt from 'markdown-it'
-import toc from 'markdown-it-toc-done-right'
-import { TocAst } from '../../../external-types/markdown-it-toc-done-right/interface'
+import toc, { TocAst } from 'markdown-it-toc-done-right'
 import { slugify } from '../../editor/table-of-contents/table-of-contents'
 
 export type DocumentTocPluginOptions = (ast: TocAst) => void
 
-export const documentToc:MarkdownIt.PluginWithOptions<DocumentTocPluginOptions> = (markdownIt, onToc) => {
+export const documentToc: MarkdownIt.PluginWithOptions<DocumentTocPluginOptions> = (markdownIt, onToc) => {
   if (!onToc) {
     return
   }
diff --git a/src/external-types/markdown-it-toc-done-right/index.d.ts b/src/external-types/markdown-it-toc-done-right/index.d.ts
deleted file mode 100644
index a2f3f4612e..0000000000
--- a/src/external-types/markdown-it-toc-done-right/index.d.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-declare module 'markdown-it-toc-done-right' {
-    import MarkdownIt from 'markdown-it/lib'
-    import { TocOptions } from './interface'
-    const markdownItTocDoneRight: MarkdownIt.PluginWithOptions<TocOptions>
-    export = markdownItTocDoneRight
-  }
diff --git a/src/external-types/markdown-it-toc-done-right/interface.ts b/src/external-types/markdown-it-toc-done-right/interface.ts
deleted file mode 100644
index 6f1b74db14..0000000000
--- a/src/external-types/markdown-it-toc-done-right/interface.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-export interface TocOptions {
-    placeholder: string
-    slugify: (s: string) => string
-    containerClass: string
-    containerId: string
-    listClass: string
-    itemClass: string
-    linkClass: string
-    level: number | number[]
-    listType: 'ol' | 'ul'
-    format: (s: string) => string
-    callback: (tocCode: string, ast: TocAst) => void
-}
-
-export interface TocAst {
-    l: number
-    n: string
-    c: TocAst[]
-}