diff --git a/setup.py b/setup.py
index f9a9da8..035f8d8 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
         "pyjwt==1.7.1",
         "zenroom==1.0.7rc0",
         "inflect==2.1.0",
-        "environs==4.1.0",
+        "environs==9.0.0",
         "fastapi==0.41.0",
         "requests==2.21.0",
         "SQLAlchemy==1.3.1",