diff --git a/setup.py b/setup.py
index 7407671db6..f850ca3ee9 100644
--- a/setup.py
+++ b/setup.py
@@ -51,7 +51,7 @@
         # only needed for p2p
         "pytest-asyncio-network-simulator==0.1.0a2;python_version>='3.6'",
         # only for eth2
-        "ruamel.yaml<=0.15",
+        "ruamel.yaml>=0.15.87,<0.16",
     ],
     'lint': [
         "flake8==3.5.0",