diff --git a/Gemfile b/Gemfile
index 6392b9c5..c1a4ef62 100644
--- a/Gemfile
+++ b/Gemfile
@@ -51,7 +51,7 @@ gem 'clockwork'
 
 # Monitoring
 gem 'gds_metrics', '~> 0.1.0'
-gem 'prometheus_exporter', '~> 0.4.5'
+gem 'prometheus_exporter', '~> 0.5.0'
 
 # HTTP
 gem 'httparty', '~> 0.17.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 51f0b813..4da1c466 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -249,7 +249,7 @@ GEM
     pg (1.1.4)
     powerpack (0.1.2)
     prometheus-client-mmap (0.9.1)
-    prometheus_exporter (0.4.5)
+    prometheus_exporter (0.5.0)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
@@ -453,7 +453,7 @@ DEPENDENCIES
   lograge (~> 0.11.2)
   logstash-event (~> 1.2, >= 1.2.02)
   pg (~> 1.1)
-  prometheus_exporter (~> 0.4.5)
+  prometheus_exporter (~> 0.5.0)
   pry-byebug
   puma (~> 4.3)
   rails (~> 5.2.2)