diff --git a/models/claim_breadth/requirements.txt b/models/claim_breadth/requirements.txt
index 3b5b2e3..7f5c956 100644
--- a/models/claim_breadth/requirements.txt
+++ b/models/claim_breadth/requirements.txt
@@ -48,7 +48,7 @@ pyasn1==0.4.2
 pyasn1-modules==0.2.1
 PyHamcrest==1.9.0
 PyVCF==0.6.8
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.4
 rsa==3.4.2
 six==1.11.0