diff --git a/docs/requirements.txt b/docs/requirements.txt
index 80a0c1c..5f557ea 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -160,7 +160,7 @@ typing-extensions==4.14.1
     # via nibabel
 tzdata==2025.2
     # via pandas
-urllib3==2.5.0
+urllib3==2.6.0
     # via requests
 versioneer==0.29
     # via capcalc (../pyproject.toml)