diff --git a/cps/about.py b/cps/about.py
index 355978c3..9053dfee 100644
--- a/cps/about.py
+++ b/cps/about.py
@@ -23,6 +23,7 @@
 import sys
 import platform
 import sqlite3
+import importlib
 from collections import OrderedDict
 
 import flask
@@ -41,8 +42,11 @@ req = dep_check.load_dependencies(False)
 opt = dep_check.load_dependencies(True)
 for i in (req + opt):
     modules[i[1]] = i[0]
-modules['Jinja2'] = jinja2.__version__
-modules['pySqlite'] = sqlite3.version
+modules['Jinja2'] = importlib.metadata.version("jinja2")
+try:
+    modules['pySqlite'] = sqlite3.version
+except Exception:
+    pass
 modules['SQLite'] = sqlite3.sqlite_version
 sorted_modules = OrderedDict((sorted(modules.items(), key=lambda x: x[0].casefold())))
 
diff --git a/cps/debug_info.py b/cps/debug_info.py
index 879846ab..3be60700 100644
--- a/cps/debug_info.py
+++ b/cps/debug_info.py
@@ -26,7 +26,8 @@ from flask_babel.speaklater import LazyString
 
 import os
 
-from flask import send_file, __version__
+from flask import send_file
+import importlib
 
 from . import logger, config
 from .about import collect_stats
@@ -49,7 +50,8 @@ def assemble_logfiles(file_name):
         with open(f, 'rb') as fd:
             shutil.copyfileobj(fd, wfd)
     wfd.seek(0)
-    if int(__version__.split('.')[0]) < 2:
+    version = importlib.metadata.version("flask")
+    if int(version.split('.')[0]) < 2:
         return send_file(wfd,
                          as_attachment=True,
                          attachment_filename=os.path.basename(file_name))
diff --git a/requirements.txt b/requirements.txt
index 460a7357..71074892 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ Wand>=0.4.4,<0.7.0
 unidecode>=0.04.19,<1.4.0
 lxml>=4.9.1,<5.3.0
 flask-wtf>=0.14.2,<1.3.0
-chardet>=3.0.0,<4.1.0
+chardet>=3.0.0,<5.3.0
 advocate>=1.0.0,<1.1.0
 Flask-Limiter>=2.3.0,<3.9.0
 regex>=2022.3.2,<2024.6.25