diff --git a/Gemfile b/Gemfile
index 6c1b74858..1d7caa83b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -77,7 +77,7 @@ group :development, :test do
   gem "i18n-tasks", "~> 0.9.31"
   gem "knapsack_pro", "~> 2.6.0"
   gem "launchy", "~> 2.4.3"
-  gem "letter_opener_web", "~> 1.3.4"
+  gem "letter_opener_web", "~> 1.4.0"
   gem "spring", "~> 2.0.1"
   gem "spring-commands-rspec", "~> 1.0.4"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 994424dc0..80e834918 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -327,9 +327,9 @@ GEM
       kramdown (~> 2.0)
     launchy (2.4.3)
       addressable (~> 2.3)
-    letter_opener (1.6.0)
+    letter_opener (1.7.0)
       launchy (~> 2.2)
-    letter_opener_web (1.3.4)
+    letter_opener_web (1.4.0)
       actionmailer (>= 3.2)
       letter_opener (~> 1.0)
       railties (>= 3.2)
@@ -414,7 +414,7 @@ GEM
     pg_search (2.3.0)
       activerecord (>= 4.2)
       activesupport (>= 4.2)
-    public_suffix (4.0.5)
+    public_suffix (4.0.6)
     puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.3)
@@ -681,7 +681,7 @@ DEPENDENCIES
   kaminari (~> 1.2.1)
   knapsack_pro (~> 2.6.0)
   launchy (~> 2.4.3)
-  letter_opener_web (~> 1.3.4)
+  letter_opener_web (~> 1.4.0)
   mdl (~> 0.11.0)
   newrelic_rpm (~> 4.1.0.333)
   omniauth (~> 1.9.1)