pdejean@app01.staging.us-east-1:/etc/apt/sources.list.d$ sudo apt-get upgrade php5
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  php5-cli php5-common php5-curl php5-dev php5-fpm php5-gd php5-gmp php5-imap
  php5-json php5-mcrypt php5-mysql php5-pgsql php5-readline php5-sqlite
  php5-xsl
0 upgraded, 0 newly installed, 0 to remove and 15 not upgraded.
pdejean@app01.staging.us-east-1:/etc/apt/sources.list.d$