diff --git a/requirements.txt b/requirements.txt
index 1e0047249..e3e8a5938 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,3 +60,4 @@ websockets==11.0.2
 janus==1.0.0
 
 ast-comments==1.0.1
+packaging==23.1
diff --git a/setup.py b/setup.py
index 38e1ec4bb..0421e307a 100644
--- a/setup.py
+++ b/setup.py
@@ -109,6 +109,7 @@ setup(
         'cryptography',
         'httpx',
         'python-dateutil',
+        'packaging',
     ],
     extras_require={
         'dev': all_extra,