version mismatch error from rebar get-deps

Question

when I run rebar get-deps I get this error message:

WARN:  /home/me/test/deps/epcap/src/epcap.app.src has version "1.0.0"; requested regex was 0.7.9
WARN:  /home/me/test/deps/epcap/src/epcap.app.src has version "1.0.0"; requested regex was 0.7.9
ERROR: Dependency dir /home/me/test/deps/epcap failed application validation with reason:
{version_mismatch,{"/home/me/test/deps/epcap/src/epcap.app.src",
               {expected,"0.7.9"},
               {has,"1.0.0"}}}

I am new to this kind of programming and could not find much answers online. any help much appreciated