diff --git a/requirements.txt b/requirements.txt
index 50c11230..89af8797 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ requests
 BTrees
 plyvel
 py-solc
-pytest==3.0.7
+pytest
 eth_abi>=1.0.0
 eth-utils>=1.0.1
 eth-account>=0.1.0a2