diff --git a/vision/requirements.txt b/vision/requirements.txt
index 63ba07d..bc2e7e2 100644
--- a/vision/requirements.txt
+++ b/vision/requirements.txt
@@ -2,4 +2,4 @@ Flask==1.0.2
 google-cloud-vision==0.35.0
 google-cloud-storage==1.13.2
 google-cloud-firestore==0.31.0
-gunicorn==19.9.0
\ No newline at end of file
+gunicorn==22.0.0
\ No newline at end of file