diff --git a/requirements.txt b/requirements.txt
index 1ee9819956a..383e136252f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ fsspec==2025.2.0
     # via universal-pathlib
 h5py==3.13.0
     # via nitransforms
-idna==3.10
+idna==3.15
     # via requests
 imageio==2.37.0
     # via scikit-image