diff --git a/pyproject.toml b/pyproject.toml
index 198b4d36..a77416ac 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
     "py-evm>=0.7.0a1",
     "requests>=2",
     "safe-pysha3>=1.0.0",
-    "web3>=6.2.0",
+    "web3>=6.2.0,<7.0.0",
 ]
 
 [project.optional-dependencies]