diff --git a/Gemfile.lock b/Gemfile.lock
index ed055fd5d..beaa4119e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -532,7 +532,7 @@ GEM
       ast (~> 2.4.1)
       racc
     plek (5.2.0)
-    prometheus_exporter (2.1.1)
+    prometheus_exporter (2.2.0)
       webrick
     pry (0.14.2)
       coderay (~> 1.1)