diff --git a/test_libs/gen_helpers/requirements.txt b/test_libs/gen_helpers/requirements.txt
index 557cae631..dc3f61904 100644
--- a/test_libs/gen_helpers/requirements.txt
+++ b/test_libs/gen_helpers/requirements.txt
@@ -1,2 +1,2 @@
-ruamel.yaml==0.15.96
+ruamel.yaml==0.16.5
 eth-utils==1.6.0
diff --git a/test_libs/gen_helpers/setup.py b/test_libs/gen_helpers/setup.py
index ee2c815c7..b674dbfb6 100644
--- a/test_libs/gen_helpers/setup.py
+++ b/test_libs/gen_helpers/setup.py
@@ -4,7 +4,7 @@ setup(
     name='gen_helpers',
     packages=['gen_base', 'gen_from_tests'],
     install_requires=[
-        "ruamel.yaml==0.15.96",
+        "ruamel.yaml==0.16.5",
         "eth-utils==1.6.0"
     ]
 )