diff --git a/requirements.txt b/requirements.txt
index 0a0f746..cf739a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ port-for==0.3.1
 Pygments==2.6.1
 pyparsing==2.4.7
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.24.0
 six==1.15.0
 snowballstemmer==2.0.0