diff --git a/Gemfile.lock b/Gemfile.lock
index abbaf8458cf49..84ecf2260a6cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -117,7 +117,7 @@ GEM
       sorcerer (>= 0.3.7)
     guess_html_encoding (0.0.11)
     handlebars-source (2.0.0)
-    hashie (3.4.0)
+    hashie (3.6.0)
     highline (1.7.1)
     hike (1.2.3)
     hiredis (0.6.0)
@@ -181,9 +181,9 @@ GEM
       multi_xml (~> 0.5)
       rack (~> 1.2)
     oj (2.12.9)
-    omniauth (1.2.2)
+    omniauth (1.4.2)
       hashie (>= 1.2, < 4)
-      rack (~> 1.0)
+      rack (>= 1.0, < 3)
     omniauth-facebook (2.0.0)
       omniauth-oauth2 (~> 1.2)
     omniauth-github-discourse (1.1.2)
@@ -228,7 +228,7 @@ GEM
     puma (2.11.1)
       rack (>= 1.1, < 2.0)
     r2 (0.2.5)
-    rack (1.5.3)
+    rack (1.5.5)
     rack-mini-profiler (0.9.3)
       rack (>= 1.1.3)
     rack-openid (1.3.1)