Instruction on how to install wget from the source:
cd ~
wget https://ftp.gnu.org/gnu/wget/wget-1.16.tar.gz
yum -y remove wget
tar -xzvf wget-1.16.tar.gz
cd wget-1.16
./configure --with-ssl=openssl --with-libssl-prefix=/usr/lib64/openssl --prefix=/usr
make && make install