diff --git a/frontend/src/components/MessageInputCustom/index.js b/frontend/src/components/MessageInputCustom/index.js
index 46ae73e..1941421 100644
--- a/frontend/src/components/MessageInputCustom/index.js
+++ b/frontend/src/components/MessageInputCustom/index.js
@@ -446,6 +446,12 @@ const CustomInput = (props) => {
               multiline
               className={classes.messageInput}
               maxRows={5}
+              onKeyDownCapture={(e) => {
+                if (e.key === 'ArrowUp' ||
+                  e.key === 'ArrowDown'
+                )
+                  e.stopPropagation();
+              }}
             />
           );
         }}