diff --git a/simple-mind-map/package-lock.json b/simple-mind-map/package-lock.json
index 4902ccb9..bf60f753 100644
--- a/simple-mind-map/package-lock.json
+++ b/simple-mind-map/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "simple-mind-map",
-  "version": "0.10.6",
+  "version": "0.12.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "0.10.6",
+      "version": "0.12.1",
       "license": "MIT",
       "dependencies": {
         "@svgdotjs/svg.js": "3.2.0",
@@ -1822,9 +1822,9 @@
       ]
     },
     "node_modules/quill": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/quill/-/quill-2.0.2.tgz",
-      "integrity": "sha512-QfazNrhMakEdRG57IoYFwffUIr04LWJxbS/ZkidRFXYCQt63c1gK6Z7IHUXMx/Vh25WgPBU42oBaNzQ0K1R/xw==",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/quill/-/quill-2.0.3.tgz",
+      "integrity": "sha512-xEYQBqfYx/sfb33VJiKnSJp8ehloavImQ2A6564GAbqG55PGw1dAWUn1MUbQB62t0azawUS2CZZhWCjO8gRvTw==",
       "dependencies": {
         "eventemitter3": "^5.0.1",
         "lodash-es": "^4.17.21",
@@ -3553,9 +3553,9 @@
       "integrity": "sha512-NuaNSa6flKT5JaSYQzJok04JzTL1CA6aGhv5rfLW3PgqA+M2ChpZQnAC8h8i4ZFkBS8X5RqkDBHA7r4hej3K9A=="
     },
     "quill": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/quill/-/quill-2.0.2.tgz",
-      "integrity": "sha512-QfazNrhMakEdRG57IoYFwffUIr04LWJxbS/ZkidRFXYCQt63c1gK6Z7IHUXMx/Vh25WgPBU42oBaNzQ0K1R/xw==",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/quill/-/quill-2.0.3.tgz",
+      "integrity": "sha512-xEYQBqfYx/sfb33VJiKnSJp8ehloavImQ2A6564GAbqG55PGw1dAWUn1MUbQB62t0azawUS2CZZhWCjO8gRvTw==",
       "requires": {
         "eventemitter3": "^5.0.1",
         "lodash-es": "^4.17.21",
diff --git a/simple-mind-map/src/plugins/RichText.js b/simple-mind-map/src/plugins/RichText.js
index ec913466..82adc214 100644
--- a/simple-mind-map/src/plugins/RichText.js
+++ b/simple-mind-map/src/plugins/RichText.js
@@ -229,14 +229,14 @@ class RichText {
       this.textEditNode = document.createElement('div')
       this.textEditNode.classList.add('smm-richtext-node-edit-wrap')
       this.textEditNode.style.cssText = `
-        position:fixed; 
-        box-sizing: border-box; 
+        position:fixed;
+        box-sizing: border-box;
         ${
           openRealtimeRenderOnNodeTextEdit
             ? ''
             : 'box-shadow: 0 0 20px rgba(0,0,0,.5);'
         }
-        outline: none; 
+        outline: none;
         word-break: break-all;
         padding: ${paddingY}px ${paddingX}px;
       `
@@ -370,7 +370,11 @@ class RichText {
 
   // 获取当前正在编辑的内容
   getEditText() {
-    return this.quill.container.firstChild.innerHTML
+    // https://github.com/slab/quill/issues/4509
+    return this.quill
+      .getSemanticHTML()
+      .replaceAll(/  +/g, match => ' '.repeat(match.length))
+    // return this.quill.container.firstChild.innerHTML
     // 去除ql-cursor节点
     // https://github.com/wanglin2/mind-map/commit/138cc4b3e824671143f0bf70e5c46796f48520d0
     // https://github.com/wanglin2/mind-map/commit/0760500cebe8ec4e8ad84ab63f877b8b2a193aa1