diff --git a/requirements.txt b/requirements.txt
index 890b85e..a44b730 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ eth_rlp==0.1.2
 numpy==1.19.1
 requests==2.20.0
 pysha3==1.0.2
-websockets==6.0
+websockets==9.1
 eth_hash==0.2.0
 rlp==1.1.0
 tqdm==4.49.0