diff --git a/app/requirements.txt b/app/requirements.txt
index 56977f0b..3c3976d4 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -12,7 +12,7 @@ google-auth-oauthlib==0.8.0
 httpx==0.25.0
 itsdangerous==2.1.2
 Jinja2==3.1.2
-PyYaml==5.4.1 # need to pin down the PyYaml version since the newest version is currently broken - https://github.com/yaml/pyyaml/issues/724
+PyYAML!=6.0.0,!=5.4.0,!=5.4.1
 python-dotenv==0.21.1
 python-i18n==0.3.9
 requests==2.31.0