diff --git a/Gemfile.lock b/Gemfile.lock
index 389b91a..b526438 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,8 +38,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     airbrussh (1.3.3)
       sshkit (>= 1.6.1, != 1.7.0)
     arel (8.0.0)
@@ -106,7 +106,7 @@ GEM
     dotenv-rails (2.7.5)
       dotenv (= 2.7.5)
       railties (>= 3.2, < 6.1)
-    down (4.8.1)
+    down (5.2.0)
       addressable (~> 2.5)
     erubi (1.8.0)
     execjs (2.7.0)
@@ -187,7 +187,7 @@ GEM
     pry-remote (0.1.8)
       pry (~> 0.9)
       slop (~> 3.0)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
     puma (3.12.1)
     rack (2.0.7)
     rack-test (1.1.0)
@@ -270,9 +270,9 @@ GEM
       rubyzip (~> 1.2, >= 1.2.2)
     shoulda-matchers (4.1.2)
       activesupport (>= 4.2.0)
-    shrine (2.19.3)
+    shrine (3.3.0)
       content_disposition (~> 1.0)
-      down (~> 4.1)
+      down (~> 5.1)
     slop (3.6.0)
     spring (2.1.0)
     spring-commands-rspec (1.0.4)