diff --git a/Gemfile.lock b/Gemfile.lock
index 311cd42cda..00c8f5cee5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -412,7 +412,8 @@ GEM
       ast (~> 2.4.1)
       racc
     pg (1.5.4)
-    prometheus-client (4.2.2)
+    prometheus-client (4.2.3)
+      base64
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)