{deps, [
    {cowboy, {git, "https://github.com/ninenines/cowboy.git", {tag, "2.8.0"}}},
    {rfc3339, {git, "https://github.com/talentdeficit/rfc3339.git", {tag, "master"}}},
    {jsx, {git, "https://github.com/talentdeficit/jsx.git", {tag, "v3.1.0"}}},
    {jesse, {git, "https://github.com/for-GET/jesse.git", {tag, "1.5.6"}}}
]}.