diff --git a/Packages/UniGLTF/package.json b/Packages/UniGLTF/package.json
index 37af138ec..e9abc0bd2 100644
--- a/Packages/UniGLTF/package.json
+++ b/Packages/UniGLTF/package.json
@@ -3,6 +3,7 @@
   "version": "0.130.1",
   "displayName": "UniGLTF",
   "description": "GLTF importer and exporter",
+  "documentationUrl": "https://github.com/vrm-c/UniVRM",
   "unity": "2021.3",
   "keywords": [
     "gltf"
@@ -14,7 +15,8 @@
     "com.unity.modules.animation": "1.0.0",
     "com.unity.modules.imgui": "1.0.0",
     "com.unity.modules.imageconversion": "1.0.0",
-    "com.unity.test-framework": "1.4.6"
+    "com.unity.test-framework": "1.4.6",
+    "com.unity.mathematics": "1.2.6"
   },
   "samples": [
     {
diff --git a/Packages/VRM/package.json b/Packages/VRM/package.json
index b526aeb3e..5a99f96d2 100644
--- a/Packages/VRM/package.json
+++ b/Packages/VRM/package.json
@@ -3,6 +3,7 @@
   "version": "0.130.1",
   "displayName": "VRM",
   "description": "VRM importer",
+  "documentationUrl": "https://github.com/vrm-c/UniVRM",
   "unity": "2021.3",
   "keywords": [
     "vrm",
@@ -39,4 +40,4 @@
       "path": "Samples~/AnimationBridgeSample"
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/Packages/VRM10/package.json b/Packages/VRM10/package.json
index 14804a7c8..fc499631d 100644
--- a/Packages/VRM10/package.json
+++ b/Packages/VRM10/package.json
@@ -3,6 +3,7 @@
   "version": "0.130.1",
   "displayName": "VRM-1.0",
   "description": "VRM-1.0 importer",
+  "documentationUrl": "https://github.com/vrm-c/UniVRM",
   "unity": "2021.3",
   "keywords": [
     "vrm",
@@ -34,4 +35,4 @@
       "path": "Samples~/ClothSample"
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/Packages/packages-lock.json b/Packages/packages-lock.json
index f483141b7..9ea5e1be8 100644
--- a/Packages/packages-lock.json
+++ b/Packages/packages-lock.json
@@ -154,7 +154,8 @@
         "com.unity.modules.animation": "1.0.0",
         "com.unity.modules.imgui": "1.0.0",
         "com.unity.modules.imageconversion": "1.0.0",
-        "com.unity.test-framework": "1.4.6"
+        "com.unity.test-framework": "1.4.6",
+        "com.unity.mathematics": "1.2.6"
       }
     },
     "com.vrmc.univrm": {