diff --git a/Gemfile.lock b/Gemfile.lock
index df69465..125c4fd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,8 +38,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (8.0.0)
     autoprefixer-rails (9.7.6)
       execjs
@@ -104,7 +104,7 @@ GEM
     nokogiri (1.10.9-x86-mingw32)
       mini_portile2 (~> 2.4.0)
     popper_js (1.16.0)
-    public_suffix (4.0.4)
+    public_suffix (4.0.7)
     puma (3.12.6)
     rack (2.2.3)
     rack-test (1.1.0)
@@ -144,7 +144,6 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     sass-rails (5.0.7)
-      ffi (~> 1.9)
       railties (>= 4.0.0, < 6)
       sass (~> 3.1)
       sprockets (>= 2.8, < 4.0)