diff --git a/types/codemirror/index.d.ts b/types/codemirror/index.d.ts
index cfcbd9d5b3..126eafe013 100644
--- a/types/codemirror/index.d.ts
+++ b/types/codemirror/index.d.ts
@@ -692,7 +692,7 @@ declare namespace CodeMirror {
 
     interface EditorChangeCancellable extends CodeMirror.EditorChange {
         /** may be used to modify the change. All three arguments to update are optional, and can be left off to leave the existing value for that field intact. */
-        update(from?: CodeMirror.Position, to?: CodeMirror.Position, text?: string): void;
+        update(from?: CodeMirror.Position, to?: CodeMirror.Position, text?: string[]): void;
 
         cancel(): void;
     }