diff --git a/requirements.txt b/requirements.txt
index 8bd0057..c0bcb62 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ xlrd==2.0.1
 flask-cors==4.0.0
 openpyxl==3.1.2
 odfpy==1.4.1
-gunicorn==22.0.0
\ No newline at end of file
+gunicorn==21.2.0
\ No newline at end of file