diff --git a/Gemfile.lock b/Gemfile.lock
index a08a7ed..e521d59 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
-  remote: git://github.com/rails-api/active_model_serializers.git
-  revision: 0b5a540e8d5a469b32e9809364c6d32daab1e6ac
+  remote: https://github.com/rails-api/active_model_serializers.git
+  revision: beeb216fab286537389788349c513264325393ef
   specs:
     active_model_serializers (1.0.0.pre.dev)
 
@@ -43,8 +43,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (6.0.4)
     aws-partitions (1.71.0)
     aws-sdk (3.0.1)
@@ -668,7 +668,7 @@ GEM
     newrelic_rpm (4.8.0.341)
     nokogiri (1.8.2)
       mini_portile2 (~> 2.3.0)
-    public_suffix (3.0.2)
+    public_suffix (5.0.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
     rack (1.6.9)