diff --git a/Gemfile.lock b/Gemfile.lock
index 726a77de..5054174d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -267,10 +267,10 @@ GEM
     pusher-signature (0.1.8)
     pygments.rb (2.2.0)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
-    rack-protection (2.2.2)
+    rack-protection (2.2.4)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -352,7 +352,7 @@ GEM
       rspec (>= 3, < 4)
     ruby-vips (2.0.17)
       ffi (~> 1.9)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     rubystats (0.3.0)
     rubyzip (1.3.0)
     sass (3.7.4)
@@ -389,10 +389,10 @@ GEM
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    sinatra (2.2.2)
+    sinatra (2.2.4)
       mustermann (~> 2.0)
       rack (~> 2.2)
-      rack-protection (= 2.2.2)
+      rack-protection (= 2.2.4)
       tilt (~> 2.0)
     split (4.0.1)
       redis (>= 4.2)
@@ -415,7 +415,7 @@ GEM
     table_print (1.5.7)
     thor (1.1.0)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.1.0)
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)