My website page is not indexing again means caching?

Dear friends, i have website i change the content of the web page now when i see that page in google it is not cached , it shows the old one cached page with old content . what should i do , My content in website page was too bad that s why i want to change the content , i have changed the content for few pages but now when i see those new fresh content pages then in cached page it shows old page content , but date shows after putting the content .

Submit your website content again to Google. Give it a time, Google will crawl new content of your website and will shown up in search results soon. You need not to worry about this.