diff --git a/requirements.txt b/requirements.txt
index 84c519d..7a4c255 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 filelock==3.0.12
 numpy>=1.18.2,<2
 pydantic==1.4
-pyyaml==5.3.1
+pyyaml==6.0.3
 typing-extensions==3.7.4.2
 yamale==2.0.1
 zarr==2.4.0