diff --git a/website/src/components/Tasks/CreateTask.tsx b/website/src/components/Tasks/CreateTask.tsx
index 7a1363a7..652a867c 100644
--- a/website/src/components/Tasks/CreateTask.tsx
+++ b/website/src/components/Tasks/CreateTask.tsx
@@ -11,11 +11,16 @@ export const CreateTask = ({ task, taskType, isDisabled, onReplyChanged }: TaskS
   const labelColor = useColorModeValue("gray.600", "gray.400");
 
   const [inputText, setInputText] = useState("");
-
   const textChangeHandler = (event: React.ChangeEvent<HTMLTextAreaElement>) => {
     const text = event.target.value;
-    onReplyChanged({ content: { text }, state: "VALID" });
-    setInputText(text);
+    const isTextBlank = !text || /^\s*$/.test(text) ? true : false;
+    if (!isTextBlank) {
+      onReplyChanged({ content: { text }, state: "VALID" });
+      setInputText(text);
+    } else {
+      onReplyChanged({ content: { text }, state: "INVALID" });
+      setInputText("");
+    }
   };
 
   return (
diff --git a/website/src/components/Tasks/Task.tsx b/website/src/components/Tasks/Task.tsx
index 24a95d78..e02f5922 100644
--- a/website/src/components/Tasks/Task.tsx
+++ b/website/src/components/Tasks/Task.tsx
@@ -51,6 +51,8 @@ export const Task = ({ frontendId, task, trigger, mutate }) => {
       if (taskStatus !== "DEFAULT") setTaskStatus("DEFAULT");
     } else if (state.state === "VALID") {
       if (taskStatus !== "SUBMITABLE") setTaskStatus("SUBMITABLE");
+    } else if (state.state == "INVALID") {
+      setTaskStatus("NOT_SUBMITTABLE");
     }
   }).current;
 
diff --git a/website/src/types/TaskReplyState.ts b/website/src/types/TaskReplyState.ts
index 602446f9..648dae3c 100644
--- a/website/src/types/TaskReplyState.ts
+++ b/website/src/types/TaskReplyState.ts
@@ -6,5 +6,9 @@ export interface TaskReplyDefault<T> {
   content: T;
   state: "DEFAULT";
 }
+export interface TaskReplyInValid<T> {
+  content: T;
+  state: "INVALID";
+}
 
-export type TaskReplyState<T> = TaskReplyValid<T> | TaskReplyDefault<T>;
+export type TaskReplyState<T> = TaskReplyValid<T> | TaskReplyDefault<T> | TaskReplyInValid<T>;