diff --git a/Gemfile.lock b/Gemfile.lock
index 2589b5bf32..b6ffdc4eac 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -120,7 +120,7 @@ GEM
       descendants_tracker (~> 0.0.4)
       ice_nine (~> 0.11.0)
       thread_safe (~> 0.3, >= 0.3.1)
-    backports (3.17.0)
+    backports (3.23.0)
     builder (3.2.4)
     bunny (2.9.2)
       amq-protocol (~> 2.3.0)
@@ -314,7 +314,7 @@ GEM
       rack (>= 1.0, < 3)
     rack-contrib (2.2.0)
       rack (~> 2.0)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.0)
       rack
     rack-ssl (1.4.1)
       rack
@@ -358,7 +358,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.2)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
     safe_yaml (1.0.5)
     sentry-raven (2.11.3)
@@ -379,17 +379,16 @@ GEM
       docile (~> 1.1)
       simplecov-html (~> 0.11)
     simplecov-html (0.12.2)
-    sinatra (2.0.8.1)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
-    sinatra-contrib (2.0.8.1)
-      backports (>= 2.8.2)
+    sinatra-contrib (2.2.0)
       multi_json
       mustermann (~> 1.0)
-      rack-protection (= 2.0.8.1)
-      sinatra (= 2.0.8.1)
+      rack-protection (= 2.2.0)
+      sinatra (= 2.2.0)
       tilt (~> 2.0)
     stackdriver-core (1.4.0)
       google-cloud-core (~> 1.2)