diff --git a/Gemfile.lock b/Gemfile.lock
index 85c250d..067b9ee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
+    addressable (2.6.0)
       public_suffix (>= 2.0.2, < 4.0)
     arel (9.0.0)
     ast (2.4.0)
@@ -121,7 +121,7 @@ GEM
       rails (>= 4.2)
     launchy (2.4.3)
       addressable (~> 2.3)
-    letter_opener (1.6.0)
+    letter_opener (1.7.0)
       launchy (~> 2.2)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -156,7 +156,7 @@ GEM
       method_source (~> 0.9.0)
     pry-rails (0.3.6)
       pry (>= 0.10.4)
-    public_suffix (3.0.3)
+    public_suffix (3.1.0)
     puma (3.12.0)
     rack (2.0.7)
     rack-cors (1.0.2)