diff --git a/requirements.txt b/requirements.txt
index 2474096..37b8f3a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,6 @@ nltk==3.4.5
 numpy==1.17.2
 pandas==0.25.1
 PyGithub==1.43.8
-PyYAML==5.1.2
+PyYAML==5.4
 sklearn==0.0
 tqdm==4.35.0