diff --git a/Gemfile.lock b/Gemfile.lock
index 71e7d31..59666e5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,7 +69,7 @@ GEM
       railties (>= 3.2, < 5.0)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
-    hashie (3.4.2)
+    hashie (4.1.0)
     hirb (0.7.3)
     i18n (0.7.0)
     jbuilder (2.3.2)
@@ -100,9 +100,9 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (~> 1.2)
-    omniauth (1.2.2)
-      hashie (>= 1.2, < 4)
-      rack (~> 1.0)
+    omniauth (1.9.1)
+      hashie (>= 3.4.6)
+      rack (>= 1.6.2, < 3)
     omniauth-google-oauth2 (0.2.6)
       omniauth (> 1.0)
       omniauth-oauth2 (~> 1.1)
@@ -114,7 +114,7 @@ GEM
     pg (0.18.4)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.6.4)
+    rack (1.6.13)
     rack-cors (0.4.0)
     rack-test (0.6.3)
       rack (>= 1.0)