diff --git a/Gemfile.lock b/Gemfile.lock
index 84d028343..02eac99b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -591,7 +591,7 @@ GEM
     parser (3.3.6.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.7)
+    pg (1.5.9)
     plek (5.2.0)
     prometheus_exporter (2.1.1)
       webrick