diff --git a/setup.py b/setup.py
index 955b0707..2513852b 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@
     install_requires=[
         "web3==5.13.1",
         "asyncio==3.4.3",
-        "pyyaml==5.3.1",
+        "pyyaml==5.4",
         "sgx.py==0.7dev2",
         "redis==3.5.3"
     ],