diff --git a/requirements.txt b/requirements.txt
index ca475ab..92b058c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 # Parsing
 pyparsing==2.2.0
-pyyaml==3.11
+pyyaml==5.4
 
 # Deployment
 setuptools==26.1.1