diff --git a/Cargo.lock b/Cargo.lock
index caa77c6..4717403 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -193,7 +193,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "docx-rs"
-version = "0.2.2"
+version = "0.2.3"
 dependencies = [
  "image 0.23.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "insta 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -210,7 +210,7 @@ dependencies = [
 name = "docx-wasm"
 version = "0.1.0"
 dependencies = [
- "docx-rs 0.2.2",
+ "docx-rs 0.2.3",
  "wasm-bindgen 0.2.53 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-test 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
diff --git a/docx-core/Cargo.toml b/docx-core/Cargo.toml
index 99217da..f23ac70 100644
--- a/docx-core/Cargo.toml
+++ b/docx-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "docx-rs"
-version = "0.2.2"
+version = "0.2.3"
 authors = ["bokuweb <bokuweb12@gmail.com>"]
 repository = "https://github.com/bokuweb/docx-rs"
 edition = "2018"
diff --git a/docx-wasm/js/index.ts b/docx-wasm/js/index.ts
index 0d81473..d07d887 100644
--- a/docx-wasm/js/index.ts
+++ b/docx-wasm/js/index.ts
@@ -126,6 +126,21 @@ export class Docx {
       run = run.vanish();
     }
 
+    let f = wasm.createRunFonts();
+    if (r.property.fonts?._ascii) {
+      f = f.ascii(r.property.fonts._ascii);
+    }
+    if (r.property.fonts?._hiAnsi) {
+      f = f.hi_ansi(r.property.fonts._hiAnsi);
+    }
+    if (r.property.fonts?._cs) {
+      f = f.cs(r.property.fonts._cs);
+    }
+    if (r.property.fonts?._eastAsia) {
+      f = f.east_asia(r.property.fonts._eastAsia);
+    }
+    run = run.fonts(f);
+
     return run;
   }
 
@@ -253,17 +268,17 @@ export class Docx {
 
     if (p.property.runProperty.fonts) {
       let f = wasm.createRunFonts();
-      if (p.property.runProperty.fonts.ascii) {
-        f = f.ascii(p.property.runProperty.fonts.ascii);
+      if (p.property.runProperty.fonts._ascii) {
+        f = f.ascii(p.property.runProperty.fonts._ascii);
       }
-      if (p.property.runProperty.fonts.hiAnsi) {
-        f = f.hi_ansi(p.property.runProperty.fonts.hiAnsi);
+      if (p.property.runProperty.fonts._hiAnsi) {
+        f = f.hi_ansi(p.property.runProperty.fonts._hiAnsi);
       }
-      if (p.property.runProperty.fonts.cs) {
-        f = f.cs(p.property.runProperty.fonts.cs);
+      if (p.property.runProperty.fonts._cs) {
+        f = f.cs(p.property.runProperty.fonts._cs);
       }
-      if (p.property.runProperty.fonts.eastAsia) {
-        f = f.east_asia(p.property.runProperty.fonts.eastAsia);
+      if (p.property.runProperty.fonts._eastAsia) {
+        f = f.east_asia(p.property.runProperty.fonts._eastAsia);
       }
       paragraph = paragraph.fonts(f);
     }
diff --git a/docx-wasm/js/run.ts b/docx-wasm/js/run.ts
index c8048bb..729d704 100644
--- a/docx-wasm/js/run.ts
+++ b/docx-wasm/js/run.ts
@@ -16,12 +16,32 @@ export type RunProperty = {
   fonts?: RunFonts;
 };
 
-export type RunFonts = {
-  ascii?: string;
-  hiAnsi?: string;
-  eastAsia?: string;
-  cs?: string;
-};
+export class RunFonts {
+  _ascii?: string;
+  _hiAnsi?: string;
+  _eastAsia?: string;
+  _cs?: string;
+
+  ascii(f: string) {
+    this._ascii = f;
+    return this;
+  }
+
+  hiAnsi(f: string) {
+    this._hiAnsi = f;
+    return this;
+  }
+
+  cs(f: string) {
+    this._cs = f;
+    return this;
+  }
+
+  eastAsia(f: string) {
+    this._eastAsia = f;
+    return this;
+  }
+}
 
 export class Run {
   children: RunChild[] = [];
diff --git a/docx-wasm/package.json b/docx-wasm/package.json
index 4b1e3b2..d415c4d 100644
--- a/docx-wasm/package.json
+++ b/docx-wasm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "docx-wasm",
-  "version": "0.0.77",
+  "version": "0.0.80",
   "main": "dist/node/index.js",
   "browser": "dist/web/index.js",
   "author": "bokuweb <bokuweb12@gmail.com>",