diff --git a/Gemfile.lock b/Gemfile.lock
index 19d58c5..604ec89 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ GEM
     ffi (1.9.18)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
-    hashie (3.5.6)
+    hashie (5.0.0)
     i18n (0.8.6)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
@@ -105,7 +105,9 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_portile2 (2.3.0)
     minitest (5.10.3)
     multi_json (1.12.2)
@@ -120,8 +122,8 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    omniauth (1.7.1)
-      hashie (>= 3.4.6, < 3.6.0)
+    omniauth (1.9.2)
+      hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
     omniauth-github (1.3.0)
       omniauth (~> 1.5)
@@ -141,7 +143,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     puma (3.10.0)
-    rack (2.0.3)
+    rack (2.2.4)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.6)