Gemfile.lock in postgres_upsert-4.0.0 vs Gemfile.lock in postgres_upsert-5.0.0

@@ -1,11 +1,11 @@
 PATH
   remote: .
   specs:
-    postgres_upsert (4.0.0)
+    postgres_upsert (5.0.0)
       activerecord (>= 3.0.0)
-      pg (~> 0.17.0)
+      pg (>= 0.17.0)
       rails (>= 3.0.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
@@ -47,27 +47,25 @@
     arel (6.0.0)
     builder (3.2.2)
     coderay (1.1.0)
     diff-lcs (1.1.3)
     erubis (2.7.0)
-    globalid (0.3.3)
+    globalid (0.3.5)
       activesupport (>= 4.1.0)
-    hike (1.2.3)
     i18n (0.7.0)
     json (1.8.2)
     loofah (2.0.1)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     method_source (0.8.2)
-    mime-types (2.4.3)
+    mime-types (2.6.1)
     mini_portile (0.6.2)
     minitest (5.5.1)
-    multi_json (1.10.1)
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
-    pg (0.17.1)
+    pg (0.18.2)
     pry (0.10.1)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
     pry-rails (0.3.2)
@@ -118,21 +116,17 @@
       rspec-collection_matchers
       rspec-core (~> 2.99.0)
       rspec-expectations (~> 2.99.0)
       rspec-mocks (~> 2.99.0)
     slop (3.6.0)
-    sprockets (2.12.3)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
+    sprockets (3.2.0)
       rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.2.4)
+    sprockets-rails (2.3.2)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)
     thor (0.19.1)
     thread_safe (0.3.4)
-    tilt (1.4.1)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
 
 PLATFORMS
   ruby