diff --git a/requirements.txt b/requirements.txt
index 450858a..98e9d85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,7 +49,7 @@ fqdn==1.5.1
     # via jsonschema
 hsds-schema-tools @ git+https://github.com/openreferral/hsds_schema_tools
     # via -r requirements.in
-idna==3.7
+idna==3.15
     # via
     #   jsonschema
     #   requests