diff --git a/src/schemas.ts b/src/schemas.ts
index b72bec90..80ea73c5 100644
--- a/src/schemas.ts
+++ b/src/schemas.ts
@@ -4,7 +4,10 @@ export const MenteeApplicationSchema = z.object({
   firstName: z.string().min(1, { message: 'First name cannot be empty' }),
   lastName: z.string().min(1, { message: 'Last name cannot be empty' }),
   email: z.string().email({ message: 'Invalid email address' }),
-  contactNo: z.string().min(1, { message: 'Contact number cannot be empty' }),
+  contactNo: z
+    .string()
+    .min(1, { message: 'Contact number cannot be empty' })
+    .regex(/^\+[1-9]\d{1,14}$/, 'Invalid contact number'),
   company: z.string().min(1, { message: 'Company cannot be empty' }).optional(),
   profilePic: z
     .string()
@@ -13,19 +16,26 @@ export const MenteeApplicationSchema = z.object({
     .string()
     .min(1, { message: 'Position cannot be empty' })
     .optional(),
-  cv: z.string().min(1, { message: 'CV cannot be empty' }),
+  cv: z
+    .string()
+    .min(1, { message: 'CV cannot be empty' })
+    .url({ message: 'Please enter a valid link' }),
   isUndergrad: z.boolean(),
   consentGiven: z.boolean().refine((val) => val, {
     message: 'You must give your consent to proceed.',
   }),
   graduatedYear: z
     .number({ invalid_type_error: 'Graduated year is required' })
+    .int({ message: 'Graduated year must be an integer' })
     .refine(
       (data) => {
-        return data === undefined || (!isNaN(data) && data >= 1980);
+        return (
+          data === undefined ||
+          (!isNaN(data) && data >= 1980 && data <= new Date().getFullYear())
+        );
       },
       {
-        message: 'Graduated year must be a year',
+        message: 'Graduated year must be a valid year',
       }
     )
     .optional(),
@@ -35,6 +45,7 @@ export const MenteeApplicationSchema = z.object({
     .optional(),
   yearOfStudy: z
     .number({ invalid_type_error: 'Year of study is required' })
+    .int({ message: 'Year of study must be an integer' })
     .gte(1, { message: 'Year must be greater than 0' })
     .lte(4, { message: 'Year must be less than or equal 4' })
     .optional(),