diff --git a/Gemfile.lock b/Gemfile.lock
index c9ba8a8..0dce84b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -58,6 +58,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1)
+    concurrent-ruby (1.1.5)
     devise (3.4.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -68,11 +69,9 @@ GEM
     domain_name (0.5.20160309)
       unf (>= 0.0.5, < 1.0.0)
     erubis (2.7.0)
-    eventmachine (1.0.7)
     execjs (2.4.0)
     fastimage (2.0.0)
       addressable (~> 2)
-    hike (1.2.3)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
     i18n (0.7.0)
@@ -92,15 +91,14 @@ GEM
       mime-types (>= 1.16, < 3)
     mime-types (2.4.3)
     minitest (5.5.1)
-    multi_json (1.11.0)
+    multi_json (1.14.1)
     netrc (0.11.0)
-    node (0.0.2)
-      eventmachine
+    node (1.0.0)
     orm_adapter (0.5.0)
     pg (0.18.1)
     puma (2.11.1)
       rack (>= 1.1, < 2.0)
-    rack (1.5.2)
+    rack (1.5.5)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.1.9)
@@ -149,11 +147,9 @@ GEM
       activerecord (>= 4)
       activesupport (>= 4)
     spring (1.3.3)
-    sprockets (2.12.3)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
+    sprockets (3.7.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
     sprockets-rails (2.2.4)
       actionpack (>= 3.0)
       activesupport (>= 3.0)