diff --git a/tasks/R2R/requirements.txt b/tasks/R2R/requirements.txt
index 18ef47a..7467d6c 100644
--- a/tasks/R2R/requirements.txt
+++ b/tasks/R2R/requirements.txt
@@ -10,7 +10,7 @@ Pillow==4.3.0
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.3
-PyYAML==5.1
+PyYAML==5.4
 six==1.11.0
 subprocess32==3.2.7
 torch==0.2.0.post3