diff --git a/requirements.txt b/requirements.txt
index 2616dca..b3de0a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,5 +4,5 @@ terminaltables==3.1.0
 semver==2.13.0
 Flask==2.1.0
 itsdangerous==2.0.1
-prometheus-client==0.5.0
+prometheus-client==0.21.1
 gevent==21.1.2
\ No newline at end of file