diff --git a/Gemfile.lock b/Gemfile.lock
index d8d2c00..6ee39f4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,7 @@ GEM
       ast (~> 2.4.1)
       racc
     pickup (0.0.11)
-    prometheus-client (4.1.0)
+    prometheus-client (4.2.1)
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)