confini<0.5.0,>=0.3.6rc3
crypto-dev-signer<=0.4.15,>=0.4.15a1
chainlib-eth<=0.1.0,>=0.0.9a3
eth_erc20<=0.2.0,>=0.1.2a2

[testing]
eth-tester==0.5.0b2
py-evm==0.3.0a20
