diff --git a/resources/views/content/dashboard/action.blade.php b/resources/views/content/dashboard/action.blade.php
index 55388ba..03cb286 100644
--- a/resources/views/content/dashboard/action.blade.php
+++ b/resources/views/content/dashboard/action.blade.php
@@ -246,6 +246,12 @@
         setInterval(setTime, 1000);
     })
 
+    function invalidSymbol() {
+        var str = document.getElementById("judul_");
+        var regex = /[^a-z]/gi;
+        str.value = str.value.replace(regex ,"");
+    }
+
     function checkTime(i) {
         if (i<10) {i = "0" + i};  // add zero in front of numbers < 10
         return i;
diff --git a/resources/views/content/dashboard/new_task_css.blade.php b/resources/views/content/dashboard/new_task_css.blade.php
index 4250937..c893b35 100644
--- a/resources/views/content/dashboard/new_task_css.blade.php
+++ b/resources/views/content/dashboard/new_task_css.blade.php
@@ -14,7 +14,7 @@
                                     <div class="form-group row mt-5">
                                         <label class="col-form-label col-xl-4 text-center" style="color: #8a2727;">Judul</label>
                                         <div class="col-xl-8">
-                                            <input type="text" name="judul_" id="judul_" class="form-control form-control-sm" value="">
+                                            <input type="text" onkeyup="invalidSymbol()" onkeydown="invalidSymbol()" name="judul_" id="judul_" class="form-control form-control-sm" value="">
                                         </div>
                                     </div>
                                     <div class="form-group row">