diff --git a/requirements.txt b/requirements.txt
index 3c1198a6..a7332a06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ matminer==0.6.2
 pymatgen==2020.01.28
 tpot==0.11.0
 skrebate==0.6
-pyyaml==5.1.2
+pyyaml==5.4.1
 scikit-learn==0.22.2
 
 # Also requirements of matminer