diff --git a/skbl/requirements.txt b/skbl/requirements.txt
index 6fa1c08..6570e83 100644
--- a/skbl/requirements.txt
+++ b/skbl/requirements.txt
@@ -8,7 +8,7 @@ cffi==1.15.1; platform_python_implementation == "PyPy"
 click==8.1.7
 colorama==0.4.6; platform_system == "Windows"
 flask==2.2.5
-flask-babel==3.1.0
+flask-babel==4.0.0
 flask-compress==1.15
 flask-reverse-proxy==0.2.0.2
 gunicorn==22.0.0