diff --git a/examples/docker-flask/requirements.txt b/examples/docker-flask/requirements.txt
index 1a9b0ae..1372939 100644
--- a/examples/docker-flask/requirements.txt
+++ b/examples/docker-flask/requirements.txt
@@ -4,7 +4,7 @@ blinker==1.6.2
 click==8.1.3
 Flask==2.3.2
 itsdangerous==2.1.2
-Jinja2==3.1.5
+Jinja2==3.1.6
 MarkupSafe==2.1.2
 Pillow==10.3.0
 pycups==2.0.1
diff --git a/setup.cfg b/setup.cfg
index ef614e3..e8fe3a3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -75,6 +75,6 @@ all =
     pywin32; platform_system=='Windows'
 
 [flake8]
-exclude = .git,.tox,.github,.eggs,__pycache__,doc/conf.py,build,dist,capabilities-data,test,src/escpos/constants.py
+exclude = .git,.venv,.tox,.github,.eggs,__pycache__,doc/conf.py,build,dist,capabilities-data,test,src/escpos/constants.py
 max-line-length = 120
 extend-ignore = E203, W503