diff --git a/types/convert-source-map/index.d.ts b/types/convert-source-map/index.d.ts
index 77b8d5d84d..6b1346b61f 100644
--- a/types/convert-source-map/index.d.ts
+++ b/types/convert-source-map/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for convert-source-map 1.3
+// Type definitions for convert-source-map 1.5
 // Project: https://github.com/thlorenz/convert-source-map
 // Definitions by: Andrew Gaspar <https://github.com/AndrewGaspar>, Melvin Groenhoff <https://github.com/mgroenhoff>, TeamworkGuy2 <https://github.com/TeamworkGuy2>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
@@ -47,17 +47,14 @@ export function fromBase64(base64: string): SourceMapConverter;
 /** Returns source map converter from given base64 encoded json string prefixed with //# sourceMappingURL=... */
 export function fromComment(comment: string): SourceMapConverter;
 
-/**Returns source map converter from given filename by parsing //# sourceMappingURL=filename.
+/** Returns source map converter from given filename by parsing //# sourceMappingURL=filename.
  * filename must point to a file that is found inside the mapFileDir. Most tools store this file right next to the generated file, i.e. the one containing the source map.
  */
 export function fromMapFileComment(comment: string, commentFileDir: string): SourceMapConverter;
 
 /** Finds last sourcemap comment in file and returns source map converter or returns null if no source map comment was found.
- * If largeSource is set to true, an algorithm that does not use regex is applied to find the source map.
- * This is faster and especially useful if you're running into "call stack size exceeded" errors with the default algorithm.
- * However, it is less accurate and may match content that isn't a source map comment.
  */
-export function fromSource(content: string, largeSource?: boolean): SourceMapConverter | null;
+export function fromSource(content: string): SourceMapConverter | null;
 
 /** Finds last sourcemap comment in file and returns source map converter or returns null if no source map comment was found.
  * The sourcemap will be read from the map file found by parsing # sourceMappingURL=file comment. For more info see fromMapFileComment.
@@ -70,10 +67,10 @@ export function removeComments(src: string): string;
 /** Returns src with all source map comments pointing to map files removed */
 export function removeMapFileComments(src: string): string;
 
-/** Returns the regex used to find source map comments */
+/** Returns a new regex used to find source map comments */
 export const commentRegex: RegExp;
 
-/** Returns the regex used to find source map comments pointing to map files */
+/** Returns a new regex used to find source map comments pointing to map files */
 export const mapFileCommentRegex: RegExp;
 
 /** Returns a comment that links to an external source map via file.