diff --git a/requirements.txt b/requirements.txt
index 762695d..3ec87a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ click==7.0
 elasticsearch>=6.0.0,<7.0.0
 requests-aws4auth==0.9
 sat-stac==0.1.3
-PyYAML==5.1.1
\ No newline at end of file
+PyYAML==5.4
\ No newline at end of file