diff --git a/Assets/VRM10/Runtime/Components/Constraint/Vrm10AimConstraint.cs b/Assets/VRM10/Runtime/Components/Constraint/Vrm10AimConstraint.cs
index 15d489eae..531cfa8e5 100644
--- a/Assets/VRM10/Runtime/Components/Constraint/Vrm10AimConstraint.cs
+++ b/Assets/VRM10/Runtime/Components/Constraint/Vrm10AimConstraint.cs
@@ -5,7 +5,7 @@ using UnityEngine;
 namespace UniVRM10
 {
     /// <summary>
-    /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_draft/schema/VRMC_node_constraint.aimConstraint.schema.json
+    /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_beta/schema/VRMC_node_constraint.aimConstraint.schema.json
     /// </summary>
     [DisallowMultipleComponent]
     public class Vrm10AimConstraint : MonoBehaviour, IVrm10Constraint
@@ -49,7 +49,7 @@ namespace UniVRM10
             _dstRestLocalQuat = transform.localRotation;
         }
         /// <summary>
-        /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_draft/README.ja.md#example-of-implementation-1
+        /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_beta/README.ja.md#example-of-implementation-1
         /// 
         /// fromVec = aimAxis.applyQuaternion( dstParentWorldQuat * dstRestQuat )
         /// toVec = ( srcWorldPos - dstWorldPos ).normalized
diff --git a/Assets/VRM10/Runtime/Components/Constraint/Vrm10RollConstraint.cs b/Assets/VRM10/Runtime/Components/Constraint/Vrm10RollConstraint.cs
index 56993a704..def2014e5 100644
--- a/Assets/VRM10/Runtime/Components/Constraint/Vrm10RollConstraint.cs
+++ b/Assets/VRM10/Runtime/Components/Constraint/Vrm10RollConstraint.cs
@@ -5,7 +5,7 @@ using UnityEngine;
 namespace UniVRM10
 {
     /// <summary>
-    /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_draft/schema/VRMC_node_constraint.rollConstraint.schema.json
+    /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_beta/schema/VRMC_node_constraint.rollConstraint.schema.json
     /// </summary>
     [DisallowMultipleComponent]
     public class Vrm10RollConstraint : MonoBehaviour, IVrm10Constraint
@@ -47,7 +47,7 @@ namespace UniVRM10
             _dstRestLocalQuat = transform.localRotation;
         }
         /// <summary>
-        /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_draft/README.ja.md#example-of-implementation
+        /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_beta/README.ja.md#example-of-implementation
         /// 
         /// deltaSrcQuat = srcRestQuat.inverse * srcQuat
         /// deltaSrcQuatInParent = srcRestQuat * deltaSrcQuat * srcRestQuat.inverse // source to parent
diff --git a/Assets/VRM10/Runtime/Components/Constraint/Vrm10RotationConstraint.cs b/Assets/VRM10/Runtime/Components/Constraint/Vrm10RotationConstraint.cs
index 848f0539b..1dc04f101 100644
--- a/Assets/VRM10/Runtime/Components/Constraint/Vrm10RotationConstraint.cs
+++ b/Assets/VRM10/Runtime/Components/Constraint/Vrm10RotationConstraint.cs
@@ -3,7 +3,7 @@
 namespace UniVRM10
 {
     /// <summary>
-    /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_draft/schema/VRMC_node_constraint.rotationConstraint.schema.json
+    /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_beta/schema/VRMC_node_constraint.rotationConstraint.schema.json
     /// </summary>
     [DisallowMultipleComponent]
     public class Vrm10RotationConstraint : MonoBehaviour, IVrm10Constraint
@@ -33,7 +33,7 @@ namespace UniVRM10
         }
 
         /// <summary>
-        /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_draft/README.ja.md#example-of-implementation-2
+        /// https://github.com/vrm-c/vrm-specification/blob/master/specification/VRMC_node_constraint-1.0_beta/README.ja.md#example-of-implementation-2
         /// 
         /// srcDeltaQuat = srcRestQuat.inverse * srcQuat
         /// targetQuat = Quaternion.slerp(
diff --git a/Assets/VRM10/Runtime/IO/Vrm10Importer.cs b/Assets/VRM10/Runtime/IO/Vrm10Importer.cs
index 6aed057d5..3ef60c4f7 100644
--- a/Assets/VRM10/Runtime/IO/Vrm10Importer.cs
+++ b/Assets/VRM10/Runtime/IO/Vrm10Importer.cs
@@ -668,7 +668,7 @@ namespace UniVRM10
         }
 
         /// <summary>
-        /// https://github.com/vrm-c/vrm-specification/tree/master/specification/VRMC_node_constraint-1.0_draft
+        /// https://github.com/vrm-c/vrm-specification/tree/master/specification/VRMC_node_constraint-1.0_beta
         /// 
         /// * roll
         /// * aim