diff --git a/requirements.txt b/requirements.txt
index 71f8628a..0b2474ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ cycler==0.12.1
     # via matplotlib
 fonttools==4.60.2
     # via matplotlib
-idna==3.7
+idna==3.15
     # via requests
 importlib-metadata==8.0.0
     # via pyxtal (setup.py)