diff --git a/requirements.txt b/requirements.txt
index 7308bed07..a426e7b87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ numpy
 persistent>=4.2.0
 py-flags
 py-evm==0.10.1b1
-py-solc-x<2.0.0
+py-solc-x<3.0.0
 py-solc
 pyparsing<3,>=2.0.2
 requests