getServerSideProps not updating until Nextjs server restart

My NextJS application is build with WPGraphQl and fetching query using getServerSideProps and apollo client. at first i host in vercel and it works properly but when i deploy it to my hosting it doesn’t pull / fetch the new updated data that i have changed from wordpress dashboard unit i reset my server. I also change my endpoint URL from WordPress but Site running and showing old contents. Note: it still working fine and show updated content in vercel.

Btw, If i put following code in client query my site show updated content but in that way it takes a lot of time to load.

fetchPolicy: 'no-cache',

here is my apollo config

import {
  ApolloClient,
  ApolloLink,
  HttpLink,
  InMemoryCache,
} from "@apollo/client";

import { setContext } from '@apollo/client/link/context';

const link = ApolloLink.from([
  new HttpLink({
    uri: process.env.WPGRAPHQL_ENDPOINT,
  }),
]);

const authLink = setContext(async (_, { headers }) => {
    return {
      headers: {
        ...headers,
        authorization: process.env.WP_AUTH_REF_TOKEN ? `Bearer ${process.env.WP_AUTH_REF_TOKEN}` : '',
      },
    };
  });

export const client = new ApolloClient({
    link: authLink.concat(link),
    cache: new InMemoryCache(),
})

My query:

  const seoRes = await client.query({
    query: getSEOstring,
    // fetchPolicy: 'no-cache', /// if enabled show updated content
    }
  )

  return{
    props:{
      posts: data?.posts?.edges,
      seoHead: seoRes?.data?.page?.seo
    }
  }
}