diff --git a/docx-core/src/documents/elements/delete.rs b/docx-core/src/documents/elements/delete.rs
index 08896bd..a863219 100644
--- a/docx-core/src/documents/elements/delete.rs
+++ b/docx-core/src/documents/elements/delete.rs
@@ -1,8 +1,8 @@
 use serde::ser::{SerializeStruct, Serializer};
 use serde::Serialize;
 
-use crate::documents::*;
 use crate::xml_builder::*;
+use crate::{documents::*, escape};
 
 #[derive(Serialize, Debug, Clone, PartialEq)]
 pub struct Delete {
@@ -84,7 +84,7 @@ impl Delete {
     }
 
     pub fn author(mut self, author: impl Into<String>) -> Delete {
-        self.author = author.into();
+        self.author = escape::escape(&author.into());
         self
     }
 
diff --git a/docx-core/src/documents/elements/insert.rs b/docx-core/src/documents/elements/insert.rs
index db04157..1d85113 100644
--- a/docx-core/src/documents/elements/insert.rs
+++ b/docx-core/src/documents/elements/insert.rs
@@ -4,7 +4,7 @@ use serde::Serialize;
 use super::*;
 
 use crate::documents::{BuildXML, HistoryId, Run};
-use crate::xml_builder::*;
+use crate::{escape, xml_builder::*};
 
 #[derive(Debug, Clone, PartialEq)]
 pub enum InsertChild {
@@ -127,7 +127,7 @@ impl Insert {
     }
 
     pub fn author(mut self, author: impl Into<String>) -> Insert {
-        self.author = author.into();
+        self.author = escape::escape(&author.into());
         self
     }
 
diff --git a/docx-wasm/package.json b/docx-wasm/package.json
index 7f5bb4e..c17266e 100644
--- a/docx-wasm/package.json
+++ b/docx-wasm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "docx-wasm",
-  "version": "0.0.278-rc19",
+  "version": "0.0.278-rc20",
   "main": "dist/node/index.js",
   "browser": "dist/web/index.js",
   "author": "bokuweb <bokuweb12@gmail.com>",