diff --git a/pyproject.toml b/pyproject.toml
index ab7ff0f..053c568 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "Flask-DebugToolbar"
-version = "0.15.1"
+version = "0.16.0.dev"
 description = "A toolbar overlay for debugging Flask applications."
 readme = "README.md"
 license = { file = "LICENSE.txt" }
diff --git a/src/flask_debugtoolbar/__init__.py b/src/flask_debugtoolbar/__init__.py
index dbd0520..6a0f3b4 100644
--- a/src/flask_debugtoolbar/__init__.py
+++ b/src/flask_debugtoolbar/__init__.py
@@ -1,13 +1,13 @@
 from __future__ import annotations
 
 import collections.abc as c
-import importlib.metadata
 import os
 import typing as t
 import urllib.parse
 import warnings
 from contextvars import ContextVar
 
+import jinja2.ext
 from flask import Blueprint
 from flask import current_app
 from flask import Flask
@@ -27,9 +27,6 @@
 from .utils import gzip_compress
 from .utils import gzip_decompress
 
-__version__ = importlib.metadata.version("flask-debugtoolbar")
-_jinja_version = importlib.metadata.version("jinja2")
-
 module: Blueprint = Blueprint("debugtoolbar", __name__)
 
 
@@ -67,10 +64,11 @@ def __init__(self, app: Flask | None = None) -> None:
         self.debug_toolbars_var: ContextVar[dict[Request, DebugToolbar]] = ContextVar(
             "debug_toolbars"
         )
-        jinja_extensions = ["jinja2.ext.i18n"]
+        jinja_extensions = [jinja2.ext.i18n]
 
-        if _jinja_version[0] == "2":
-            jinja_extensions.append("jinja2.ext.with_")
+        # Jinja2<3
+        if hasattr(jinja2.ext, "with_"):
+            jinja_extensions.append(jinja2.ext.with_)  # pyright: ignore
 
         # Configure jinja for the internal templates and add url rules
         # for static data