diff --git a/Gemfile b/Gemfile
index 90d692fd..e5444b93 100644
--- a/Gemfile
+++ b/Gemfile
@@ -116,4 +116,4 @@ gem "openssl", "~> 3.1"
 # mail 2.8.0 breaks sendmail usage: https://github.com/mikel/mail/issues/1538
 gem "mail", "~> 2.7.1"
 
-gem "prometheus-client", "~> 4.1"
+gem "prometheus-client", "~> 4.2"
diff --git a/Gemfile.lock b/Gemfile.lock
index e0832774..6e95a89f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -280,7 +280,7 @@ GEM
     pg (1.5.3)
     pghero (3.3.3)
       activerecord (>= 6)
-    prometheus-client (4.1.0)
+    prometheus-client (4.2.0)
     public_suffix (5.0.1)
     puma (6.3.0)
       nio4r (~> 2.0)
@@ -528,7 +528,7 @@ DEPENDENCIES
   openssl (~> 3.1)
   pg
   pghero
-  prometheus-client (~> 4.1)
+  prometheus-client (~> 4.2)
   puma
   pundit (~> 2.3)
   questiongenerator (~> 1.1)