diff --git a/requirements.txt b/requirements.txt
index 2b740e8..c6d1cfb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ certifi==2020.12.5
 charset-normalizer==2.0.4; python_full_version >= "3.6.0" and python_version >= "3"
 click==7.1.2; python_full_version >= "3.7.0" and python_version >= "3.7"
 cssmin==0.2.0
-environs==8.1.0; python_full_version >= "3.5.3"
+environs==9.5.0; python_full_version >= "3.5.3"
 feedgen==0.9.0
 gunicorn==20.0.4; python_version >= "3.4"
 h11==0.12.0; python_version >= "3.7" and python_full_version >= "3.7.0"