How to change a value of a collider?

Hello, I am trying to change the value of scriptTwo using scriptOne when the objects, the two scripts are attached to, collide. Here are my scripts:

 using System.Collections;
 using UnityEngine;

 public class ScriptOne : MonoBehaviour {

     public float newValue = 1.5f;

     void OnCollisionEnter(Collision obj){
     
         obj.gameObject.GetComponent<ScriptTwo> ().Value = newValue;

     }
 }

ScriptTwo:

 using System.Collections;
 using UnityEngine;
 public class ScriptTwo : MonoBehaviour {
     public float Value = 1f;
 }

But when the two collide, Value of ScriptTwo is still 1. Is there a way of fixing this?