diff --git a/Gemfile.lock b/Gemfile.lock
index 172c375e..3f9b91e5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -217,7 +217,7 @@ GEM
       activerecord (>= 3.0)
     hashdiff (0.3.7)
     hashery (2.1.2)
-    hashie (3.5.7)
+    hashie (5.0.0)
     highline (2.0.0)
     hike (1.2.3)
     htmlentities (4.3.4)
@@ -282,7 +282,9 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.8.0)
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
@@ -316,8 +318,8 @@ GEM
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
     oj (3.3.10)
-    omniauth (1.8.1)
-      hashie (>= 3.4.6, < 3.6.0)
+    omniauth (1.9.2)
+      hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
     omniauth-oauth2 (1.5.0)
       oauth2 (~> 1.1)
@@ -345,7 +347,7 @@ GEM
     pundit (2.0.0)
       activesupport (>= 3.0.0)
     raabro (1.1.6)
-    rack (1.6.10)
+    rack (1.6.13)
     rack-protection (1.5.5)
       rack
     rack-test (0.6.3)