diff --git a/CHANGES.rst b/CHANGES.rst
index bffdbdce..9849f850 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,8 @@
+Version 3.1.1
+-------------
+
+-   Require Werkzeug >= 3.0.3.
+
 Version 3.1.0
 -------------
 
diff --git a/pyproject.toml b/pyproject.toml
index 64d51c32..47aaa557 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ classifiers = [
 ]
 requires-python = ">=3.8"
 dependencies = [
-    "Werkzeug>=3.0.0",
+    "Werkzeug>=3.0.3",
     "Jinja2>=3.1.2",
     "itsdangerous>=2.1.2",
     "click>=8.1.3",