diff --git a/Gemfile.lock b/Gemfile.lock
index 364fc194c15..7a0e9582673 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -262,7 +262,7 @@ GEM
       pry (~> 0.13.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    public_suffix (4.0.5)
+    public_suffix (4.0.6)
     puma (4.3.5)
       nio4r (~> 2.0)
     r2 (0.2.7)