diff --git a/requirements.txt b/requirements.txt
index 8a3ccf08..ba7edbe3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,5 +7,5 @@ tensorflow==1.14.0
 tqdm==4.32.2
 pytest==4.6.11
 matplotlib==2.2.5
-PyYAML==5.3.1
+PyYAML==5.4
 pathlib==1.0.1