diff --git a/Gemfile.lock b/Gemfile.lock
index d3529c3..0f7e223 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,17 +40,17 @@ GEM
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    oauth2 (1.4.9)
+    oauth2 (1.4.11)
       faraday (>= 0.17.3, < 3.0)
       jwt (>= 1.0, < 3.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
-      rack (>= 1.2, < 3)
+      rack (>= 1.2, < 4)
     octokit (4.22.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     public_suffix (4.0.7)
-    rack (2.2.3)
+    rack (3.0.7)
     ruby2_keywords (0.0.5)
     sawyer (0.8.2)
       addressable (>= 2.3.5)