diff --git a/requirements.txt b/requirements.txt
index 5c4e1292..b25af2b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ protobuf==3.10.0
 pyparsing==2.4.2
 python-dateutil==2.8.0
 PyWavelets==1.0.3
-PyYAML==5.1.2
+PyYAML==5.4
 scikit-image==0.15.0
 scipy==1.3.1
 six==1.12.0