diff --git a/setup.py b/setup.py
index 360ce26..c7ff412 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
       'toml == 0.9.4',
       'h5py == 2.10.0',
       'scipy==1.4.1',
-      'pyyaml==5.3.1',
+      'pyyaml==5.4',
       'semver==2.9.0',
       'fsspec==0.7.4',
       's3fs==0.4.2',