diff --git a/src/highlight.js b/src/highlight.js
index 0f03301a55..6c3e889fba 100644
--- a/src/highlight.js
+++ b/src/highlight.js
@@ -794,26 +794,6 @@ const HLJS = function(hljs) {
     return Object.keys(languages);
   }
 
-  /**
-    intended usage: When one language truly requires another
-
-    Unlike `getLanguage`, this will throw when the requested language
-    is not available.
-
-    @param {string} name - name of the language to fetch/require
-    @returns {Language | never}
-  */
-  function requireLanguage(name) {
-    logger.deprecated("10.4.0", "requireLanguage will be removed entirely in v11.");
-    logger.deprecated("10.4.0", "Please see https://github.com/highlightjs/highlight.js/pull/2844");
-
-    const lang = getLanguage(name);
-    if (lang) { return lang; }
-
-    const err = new Error('The \'{}\' language is required, but not loaded.'.replace('{}', name));
-    throw err;
-  }
-
   /**
    * @param {string} name - name of the language to retrieve
    * @returns {Language | undefined}
@@ -916,7 +896,6 @@ const HLJS = function(hljs) {
     listLanguages,
     getLanguage,
     registerAliases,
-    requireLanguage,
     autoDetection,
     inherit,
     addPlugin,
diff --git a/types/index.d.ts b/types/index.d.ts
index 3086671404..da8cdcb604 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -27,7 +27,6 @@ interface PublicApi {
     listLanguages: () => string[]
     registerAliases: (aliasList: string | string[], { languageName } : {languageName: string}) => void
     getLanguage: (languageName: string) => Language | undefined
-    requireLanguage: (languageName: string) => Language | never
     autoDetection: (languageName: string) => boolean
     inherit: <T>(original: T, ...args: Record<string, any>[]) => T
     addPlugin: (plugin: HLJSPlugin) => void