diff --git a/Gemfile.lock b/Gemfile.lock
index 739b009..5bdc3ac 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,8 +42,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     archive-zip (0.12.0)
       io-like (~> 0.3.0)
     arel (9.0.0)
@@ -104,7 +104,7 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.10.3)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.1.0)
+    public_suffix (5.0.0)
     puma (3.12.1)
     rack (2.0.7)
     rack-test (1.1.0)
@@ -154,11 +154,6 @@ GEM
     selenium-webdriver (3.142.3)
       childprocess (>= 0.5, < 2.0)
       rubyzip (~> 1.2, >= 1.2.2)
-    spring (2.0.2)
-      activesupport (>= 4.2)
-    spring-watcher-listen (2.0.1)
-      listen (>= 2.7, < 4.0)
-      spring (>= 1.2, < 3.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -203,8 +198,6 @@ DEPENDENCIES
   rails (~> 5.2.3)
   sass-rails (~> 5.0)
   selenium-webdriver
-  spring
-  spring-watcher-listen (~> 2.0.0)
   sqlite3
   turbolinks (~> 5)
   tzinfo-data