diff --git a/requirements.txt b/requirements.txt
index f06c7dea..2b1b9736 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -105,7 +105,7 @@ typing-extensions==4.15.0
     # via
     #   beautifulsoup4
     #   libsemigroups_pybind11 (pyproject.toml)
-urllib3==2.5.0
+urllib3==2.6.0
     # via requests
 
 # The following packages are considered to be unsafe in a requirements file: