diff --git a/webots-project/controllers/pos-prediction/requirements.txt b/webots-project/controllers/pos-prediction/requirements.txt
index 5920cef..1d6b7d7 100644
--- a/webots-project/controllers/pos-prediction/requirements.txt
+++ b/webots-project/controllers/pos-prediction/requirements.txt
@@ -29,7 +29,7 @@ pyasn1-modules==0.2.8
 pyparsing==2.4.6
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 requests-oauthlib==1.3.0
 rsa==4.0