diff --git a/code/Ch11/pyproject.toml b/code/Ch11/pyproject.toml
index 2d1aa54..fef4fd4 100644
--- a/code/Ch11/pyproject.toml
+++ b/code/Ch11/pyproject.toml
@@ -78,7 +78,7 @@ dependencies = [
     "traitlets==5.14.3",
     "triad==0.9.8",
     "tzdata==2025.2",
-    "urllib3==2.5.0",
+    "urllib3==2.6.0",
     "utilsforecast==0.2.14",
     "wcwidth==0.2.14",
 ]