diff --git a/deposit_contract/requirements-testing.txt b/deposit_contract/requirements-testing.txt
index cbf6983c1..b8ebe3b84 100644
--- a/deposit_contract/requirements-testing.txt
+++ b/deposit_contract/requirements-testing.txt
@@ -2,4 +2,5 @@ eth-tester[py-evm]==0.1.0b39
 git+https://github.com/vyperlang/vyper@1761-HOTFIX-v0.1.0-beta.13
 web3==5.0.0b2
 pytest==3.6.1
+../tests/core/config_helpers
 ../tests/core/pyspec