diff --git a/requirements.txt b/requirements.txt
index 33d5abe..ad24997 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,21 +6,21 @@ gevent
 dnspython
 pylint
 cyrtranslit
-astral
+astral>=2.0,<=2.2
 timezonefinder==2.1.2
 pytz
 pyte
-python-dateutil
+python-dateutil>=2.5.0,<=2.8.1
 diagram
 pyjq
 scipy
 numpy
 pillow
 babel
-pylru
+pylru>=1.0.7,<=1.2.1
 pysocks
 supervisor
 numba
-emoji
+emoji>=1.6.0,<=1.7.0
 grapheme
 pycountry