diff --git a/Runtime/InputSources/Tuio11Input.cs b/Runtime/InputSources/Tuio11Input.cs
index d069f43e..69022f41 100644
--- a/Runtime/InputSources/Tuio11Input.cs
+++ b/Runtime/InputSources/Tuio11Input.cs
@@ -69,7 +69,7 @@ private void AddObject(Tuio11Object tuio11Object)
                 };
                 var objectPointer = AddObject(screenPosition);
                 UpdateObjectProperties(objectPointer, tuio11Object);
-                ObjectToInternalId.Add(tuio11Object.SymbolId, objectPointer);
+                ObjectToInternalId.Add(tuio11Object.SessionId, objectPointer);
             }
         }
 
@@ -77,7 +77,7 @@ private void UpdateObject(Tuio11Object tuio11Object)
         {
             lock (this)
             {
-                if (!ObjectToInternalId.TryGetValue(tuio11Object.SymbolId, out var objectPointer)) return;
+                if (!ObjectToInternalId.TryGetValue(tuio11Object.SessionId, out var objectPointer)) return;
                 var screenPosition = new Vector2
                 {
                     x = tuio11Object.Position.X * ScreenWidth,
@@ -93,8 +93,8 @@ private void RemoveObject(Tuio11Object tuio11Object)
         {
             lock (this)
             {
-                if (!ObjectToInternalId.TryGetValue(tuio11Object.SymbolId, out var objectPointer)) return;
-                ObjectToInternalId.Remove(tuio11Object.SymbolId);
+                if (!ObjectToInternalId.TryGetValue(tuio11Object.SessionId, out var objectPointer)) return;
+                ObjectToInternalId.Remove(tuio11Object.SessionId);
                 ReleasePointer(objectPointer);
                 RemovePointer(objectPointer);
             }
diff --git a/package.json b/package.json
index 9ac113b9..25a84aaf 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,6 @@
     }
   ],
   "dependencies": {
-    "com.unity.textmeshpro": ""
+    "com.unity.textmeshpro": "3.0.0"
   }
 }
\ No newline at end of file