Find the latest version under the following link:
http://curl.haxx.se/download/?C=M;O=D
For instance curl-7.46.0 version
Download and install it
cd /usr/local/src/ curl http://curl.haxx.se/download/curl-7.46.0.tar.gz | tar xvz cd curl-7.46.0/ ./configure && make && make install curl -V