diff --git a/Gemfile.lock b/Gemfile.lock
index 3112a04..56bdc27 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,8 +13,8 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     multipart-post (2.0.0)
-    rack (1.6.4)
-    rack-protection (1.5.3)
+    rack (1.6.11)
+    rack-protection (1.5.5)
       rack
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
@@ -34,7 +34,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.4.0)
     rspec-support (3.4.1)
-    sinatra (1.4.7)
+    sinatra (1.4.8)
       rack (~> 1.5)
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
@@ -42,7 +42,7 @@ GEM
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (~> 1.0)
-    tilt (2.0.2)
+    tilt (2.0.9)
 
 PLATFORMS
   ruby