diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1fbc6100..4319e560 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       max-parallel: 3
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
 
     steps:
       - name: checkout
diff --git a/requirements.txt b/requirements.txt
index 183d2f69..381d5938 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ jinja2>=3.1.2
 surt>=0.3.1
 brotlipy
 pyyaml
-werkzeug==2.3.7
+werkzeug==2.2.3
 webencodings
 gevent==23.9.0
 greenlet>=2.0.2,<3.0
diff --git a/setup.py b/setup.py
index 85671138..b9f5a8ca 100755
--- a/setup.py
+++ b/setup.py
@@ -113,7 +113,7 @@ setup(
             "translate_toolkit"
         ],
     },
-    python_requires='>=3.8',
+    python_requires='>=3.7,<3.12',
     tests_require=load_requirements("test_requirements.txt"),
     cmdclass={'test': PyTest},
     test_suite='',
@@ -133,6 +133,7 @@ setup(
         'License :: OSI Approved :: GNU General Public License (GPL)',
         'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
         'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
diff --git a/tox.ini b/tox.ini
index 0c858fdf..eab3d6e3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,10 +4,11 @@ testpaths =
     tests
 
 [tox]
-envlist = py38, py39, py310, py311
+envlist = py37, py38, py39, py310, py311
 
 [gh-actions]
 python =
+    3.7: py37
     3.8: py38
     3.9: py39
     3.10: py310