diff --git a/Builder/Gemfile.lock b/Builder/Gemfile.lock
index f49a6fb754f..385be3d3199 100644
--- a/Builder/Gemfile.lock
+++ b/Builder/Gemfile.lock
@@ -170,7 +170,7 @@ GEM
     pg (1.5.6)
     psych (5.1.2)
       stringio
-    public_suffix (5.0.5)
+    public_suffix (5.1.0)
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.8.0)