diff --git a/requirements-dev.txt b/requirements-dev.txt
index d43e47d26..831d8d4be 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -11,7 +11,7 @@ flake8-tuple>=0.4.1
 flake8-bugbear>=20.1.2
 
 # Testing
-eth-tester[py-evm]==0.6.0b6
+eth-tester[py-evm]==0.7.0b1
 coverage
 pytest
 pytest-cov