diff --git a/Gemfile.lock b/Gemfile.lock
index b3e9e90..b6eb56b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -93,7 +93,7 @@ GEM
     ffi (1.10.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    hashie (3.6.0)
+    hashie (5.0.0)
     high_voltage (3.1.0)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
@@ -134,8 +134,8 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    omniauth (1.9.0)
-      hashie (>= 3.4.6, < 3.7.0)
+    omniauth (1.9.2)
+      hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
     omniauth-github (1.3.0)
       omniauth (~> 1.5)
@@ -160,7 +160,7 @@ GEM
       prawn (>= 1.3.0, < 3.0.0)
     public_suffix (3.0.3)
     puma (3.12.1)
-    rack (2.0.7)
+    rack (2.2.4)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)