diff --git a/travis-textract-requirements/python-dev.txt b/travis-textract-requirements/python-dev.txt
index bd820cd..e47dad7 100644
--- a/travis-textract-requirements/python-dev.txt
+++ b/travis-textract-requirements/python-dev.txt
@@ -6,7 +6,7 @@
 -r python-doc.txt
 
 # needed for tests/run.py script to read .travis.yml file
-PyYAML==3.12
+PyYAML==5.4
 pep8==1.7.0
 coveralls==1.1
 requests==2.18.1