PHP message Warning during NPRestart command

Hello;
After yum update and centmin update, I got PHP message warning for commanding 'nprestart'

Code:

[root@zeus ~]# nprestart
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
Stopping nginx:  [  OK  ]
Starting nginx:  [  OK  ]
Gracefully shutting down php-fpm . done
Starting php-fpm [12-Jan-2016 05:05:44] NOTICE: PHP message: PHP Warning:  Version warning: Imagick was compiled against Image Magick version 1681 but version 1682 is loaded. Imagick will run but may behave surprisingly in Unknown on line 0
 done

Actually things are running well but I'm not sure if the warning is important.
Thanks for your comment

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