diff --git a/engines/ssllabs/requirements.txt b/engines/ssllabs/requirements.txt
index 327ed886..a5a0a2bc 100644
--- a/engines/ssllabs/requirements.txt
+++ b/engines/ssllabs/requirements.txt
@@ -4,7 +4,7 @@ charset-normalizer==2.1.1
 click==8.1.3
 Flask==2.2.3
 gunicorn==20.1.0
-idna==3.4
+idna==3.15
 itsdangerous==2.1.2
 Jinja2==3.1.2
 MarkupSafe==2.1.1