If you don't see the update in the store, then the update will come a little bit later for your region. Please try to update the game later.

If after some time you still can't update the game, do the following:

  1. Go to Settings > Apps > Google Play Store > Storage and select Clear Data;
  2. Restart your device;
  3. Go to Play Store and download the latest game version;

If it doesn't help try to delete Google Play updates in Settings, restart your device, update Google Play and then update Klondike.