diff --git "a/data/1.toolchains\345\210\235\351\230\266/1.GIT\345\205\245\351\227\250/config.json" "b/data/1.toolchains\345\210\235\351\230\266/1.GIT\345\205\245\351\227\250/config.json"
index 792ef9c79401097e928476037bdafbb196cecceb..583e99b85d3aab1bf078ca7d74cf0629c1faba54 100644
--- "a/data/1.toolchains\345\210\235\351\230\266/1.GIT\345\205\245\351\227\250/config.json"
+++ "b/data/1.toolchains\345\210\235\351\230\266/1.GIT\345\205\245\351\227\250/config.json"
@@ -1,5 +1,5 @@
 {
   "keywords": [],
-  "node_id": "tc-ca61bc935c5d40239707de30f68a4444",
+  "node_id": "toolchains-898c51077b934818b94f56b459c14965",
   "title": "GIT入门"
 }
\ No newline at end of file
diff --git "a/data/1.toolchains\345\210\235\351\230\266/config.json" "b/data/1.toolchains\345\210\235\351\230\266/config.json"
index d1b3f42dd5662659b40b5af4a4b9c7d82d5ca4db..f1b73dfb051213e5d19f39d05ba60f866fa1cb72 100644
--- "a/data/1.toolchains\345\210\235\351\230\266/config.json"
+++ "b/data/1.toolchains\345\210\235\351\230\266/config.json"
@@ -1,5 +1,5 @@
 {
   "keywords": [],
-  "node_id": "tc-e314213fdbfc445285991968b8b886eb",
+  "node_id": "toolchains-87f33f689f5e4f05a65f344faa2022cb",
   "title": "toolchains初阶"
 }
\ No newline at end of file
diff --git "a/data/2.toolchains\344\270\255\351\230\266/config.json" "b/data/2.toolchains\344\270\255\351\230\266/config.json"
index c7ad3c733c0bb9b257283c57b8dc13f49c97a486..1d9556866378ad0d555ae9bb00539f09ab17d4e8 100644
--- "a/data/2.toolchains\344\270\255\351\230\266/config.json"
+++ "b/data/2.toolchains\344\270\255\351\230\266/config.json"
@@ -1,5 +1,5 @@
 {
   "keywords": [],
-  "node_id": "tc-e86748361c424ab28f0ed3ea4a56f652",
+  "node_id": "toolchains-979177e2db87470cb604783444e47175",
   "title": "toolchains中阶"
 }
\ No newline at end of file
diff --git "a/data/3.toolchains\351\253\230\351\230\266/config.json" "b/data/3.toolchains\351\253\230\351\230\266/config.json"
index b02b48709e5e4b944c21c9505e8180d10547144b..39df38838713d49bdcfc20016237b75a09051754 100644
--- "a/data/3.toolchains\351\253\230\351\230\266/config.json"
+++ "b/data/3.toolchains\351\253\230\351\230\266/config.json"
@@ -1,5 +1,5 @@
 {
   "keywords": [],
-  "node_id": "tc-b2bc70f02a614ca7adac587f37f98acb",
+  "node_id": "toolchains-86e5c506fc34422491c049db4c45e39e",
   "title": "toolchains高阶"
 }
\ No newline at end of file
diff --git a/data/config.json b/data/config.json
index 8a01d9a3fbe6e0e3100698ec63eb3d05e18603e8..4c0eb05914dcd7585cb110207381a49163919381 100644
--- a/data/config.json
+++ b/data/config.json
@@ -1,6 +1,6 @@
 {
   "tree_name": "toolchains",
   "keywords": [],
-  "node_id": "tc-6b7817c003af4f2fb8f53367b6ae0bb5",
+  "node_id": "toolchains-adef561f31da4077ade16720641aea78",
   "title": "Tool Chains"
 }
\ No newline at end of file
diff --git a/data/tree.json b/data/tree.json
index fc8cb2743618ccb9f6152ba6a53a934fc4eea1f8..a1a79a81e0f29e10a45324fb6416e120c3802154 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -1,16 +1,16 @@
 {
-  "Toolchains": {
-    "node_id": "tc-6b7817c003af4f2fb8f53367b6ae0bb5",
+  "toolchains": {
+    "node_id": "toolchains-adef561f31da4077ade16720641aea78",
     "keywords": [],
     "children": [
       {
         "toolchains初阶": {
-          "node_id": "tc-e314213fdbfc445285991968b8b886eb",
+          "node_id": "toolchains-87f33f689f5e4f05a65f344faa2022cb",
           "keywords": [],
           "children": [
             {
               "GIT入门": {
-                "node_id": "tc-ca61bc935c5d40239707de30f68a4444",
+                "node_id": "toolchains-898c51077b934818b94f56b459c14965",
                 "keywords": [],
                 "children": []
               }
@@ -20,14 +20,14 @@
       },
       {
         "toolchains中阶": {
-          "node_id": "tc-e86748361c424ab28f0ed3ea4a56f652",
+          "node_id": "toolchains-979177e2db87470cb604783444e47175",
           "keywords": [],
           "children": []
         }
       },
       {
         "toolchains高阶": {
-          "node_id": "tc-b2bc70f02a614ca7adac587f37f98acb",
+          "node_id": "toolchains-86e5c506fc34422491c049db4c45e39e",
           "keywords": [],
           "children": []
         }
diff --git a/src/tree.py b/src/tree.py
index 07fb6574f09ecf571191948d91a9bdefb3da234d..1dff2c0641af785a5031ad7491c81d86a3852def 100644
--- a/src/tree.py
+++ b/src/tree.py
@@ -56,7 +56,7 @@ def gen_tree(data_path):
 
     def gen_node_id():
         # return ''.join(str(uuid.uuid5(uuid.NAMESPACE_URL, 'skill_tree')).split('-'))
-        return "tc-" + uuid.uuid4().hex
+        return "toolchains-" + uuid.uuid4().hex
 
     def list_dir(p):
         v = os.listdir(p)