diff --git a/chainguard/requirements.txt b/chainguard/requirements.txt
index d281670..4aa1c1d 100644
--- a/chainguard/requirements.txt
+++ b/chainguard/requirements.txt
@@ -1,4 +1,4 @@
 Flask==3.0.3
 redis==5.1.0b7
-prometheus-client==0.16.0
+prometheus-client==0.21.0
 Werkzeug==3.0.4
\ No newline at end of file
diff --git a/src/requirements.txt b/src/requirements.txt
index d281670..4aa1c1d 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -1,4 +1,4 @@
 Flask==3.0.3
 redis==5.1.0b7
-prometheus-client==0.16.0
+prometheus-client==0.21.0
 Werkzeug==3.0.4
\ No newline at end of file