diff --git a/setup.py b/setup.py
index d11fc71..f881848 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
     install_requires=[
         "dodoo>=2.0.0.rc6",
         "pyyaml==3.12 ; python_version < '3.7'",
-        "pyyaml==3.13 ; python_version >= '3.7'",
+        "pyyaml==5.1 ; python_version >= '3.7'",
         "networkx",
         "pandas",
         "xlrd",