diff --git a/blog.html b/blog.html
index fce19094..a9e7a378 100644
--- a/blog.html
+++ b/blog.html
@@ -490,7 +490,9 @@ <h2 class="section-title">
       <h3 class="form-title">Share Your Thoughts</h3>
       <form id="commentForm" class="form-content">
         <div class="input-container">
-          <input type="text" id="commenterName" class="input-field" placeholder=" " required>
+          <input type="text" id="commenterName" class="input-field" placeholder=" " required pattern="[a-zA-Z ]+"
+                                oninvalid="this.setCustomValidity('Numbers and Symbols are not allowed')"
+                                oninput="this.setCustomValidity('')">
           <label for="commenterName" class="input-label">Your Name</label>
         </div>
         <div class="input-container">