diff --git a/frontend/src/common/redux/userLogin.ts b/frontend/src/common/redux/userLogin.ts
index b1a4d80b..e6badc60 100644
--- a/frontend/src/common/redux/userLogin.ts
+++ b/frontend/src/common/redux/userLogin.ts
@@ -240,18 +240,30 @@ export const registerViaEmailAndPassword = createAsyncThunk<
       });
     }
 
-    if (!firstName || firstName === "" || !isNameValid(firstName)) {
+    if (!firstName || firstName === "") {
       return thunkAPI.rejectWithValue({
         message: "Please enter your first name"
       });
     }
 
-    if (!lastName || lastName === "" || !isNameValid(lastName)) {
+    if (!isNameValid(firstName)) {
+      return thunkAPI.rejectWithValue({
+        message: "First name must contain only letters"
+      });
+    }
+
+    if (!lastName || lastName === "") {
       return thunkAPI.rejectWithValue({
         message: "Please enter your last name"
       });
     }
 
+    if (!isNameValid(lastName)) {
+      return thunkAPI.rejectWithValue({
+        message: "Last name must contain only letters"
+      });
+    }
+
     try {
       const userCredential = await createUserWithEmailAndPassword(
         auth,