diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ab1da3c..947f642 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,8 +13,8 @@ jobs:
     name: tests
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        python: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        os: [ubuntu-latest, macos-latest]  # TODO: add windows-latest
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12']
       fail-fast: false
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/src/flask_assets.py b/src/flask_assets.py
index c4232b2..4bfec70 100644
--- a/src/flask_assets.py
+++ b/src/flask_assets.py
@@ -5,7 +5,12 @@
 import logging
 from os import path
 
-from flask.globals import request_ctx, app_ctx
+try:
+    from flask.globals import request_ctx, app_ctx
+except ImportError:
+    from flask import _request_ctx_stack, _app_ctx_stack
+    request_ctx = _request_ctx_stack.top
+    app_ctx = _app_ctx_stack.top
 from flask import current_app, has_app_context, has_request_context
 from flask.templating import render_template_string
 # We want to expose Bundle via this module.
diff --git a/tox.ini b/tox.ini
index 75b9c6c..102dee1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py37, py38, py39, py310, py311, py312
+envlist = py37, py38, py39, py310, py311, py312, flask1, flask2
 skip_missing_interpreters = true
 
 [gh-actions]
@@ -10,9 +10,25 @@ python =
     3.10: py310
     3.11: py311
     3.12: py312
+    flask1: py38
+    flask2: py310
 
 [testenv]
 deps =
     -r requirements.txt
 commands =
     pytest
+
+[flask1]
+deps =
+    -r requirements.txt
+    flask==1.0.0
+commands =
+    pytest
+
+[flask2]
+deps =
+    -r requirements.txt
+    flask==2.0.0
+commands =
+    pytest