diff --git a/pyproject.toml b/pyproject.toml
index dda7850..3c74aac 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,9 +61,15 @@ zip-safe = false
 include-package-data = true
 platforms = [ "Windows", "macOS", "Linux",]
 
+[tool.dep_checker]
+allowed_unused = [ "werkzeug", "gunicorn", "psycopg2", "psycopg2_binary",]
+
 [tool.dependency-dash."requirements.txt"]
 order = 10
 
+[tool.dep_checker.name_mapping]
+github3_py = "github3"
+
 [tool.snippet-fmt.languages.python]
 reformat = true
 
diff --git a/requirements.txt b/requirements.txt
index 949c3e9..4c9a7bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,3 +12,4 @@ gunicorn>=20.0.4
 psycopg2-binary>=2.8.6
 southwark>=0.7.1
 sqlalchemy==1.3.22
+werkzeug<3
diff --git a/tox.ini b/tox.ini
index e8dc783..d35f58e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -156,11 +156,3 @@ python =
     3.7: py37, build
     3.8: py38, build
     3.9: py39, build
-
-[dep_checker]
-name_mapping =
-    github3_py = github3
-allowed_unused =
-    gunicorn
-    psycopg2
-    psycopg2_binary