diff --git a/Gemfile.lock b/Gemfile.lock
index 6ad3443..2b5e397 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,23 +91,23 @@ GEM
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.4)
-    rack-protection (2.2.2)
+    rack-protection (2.2.3)
       rack
     rack-test (2.0.2)
       rack (>= 1.3)
     rake (13.0.6)
     rexml (3.2.5)
     ruby2_keywords (0.0.5)
-    sinatra (2.2.2)
+    sinatra (2.2.3)
       mustermann (~> 2.0)
       rack (~> 2.2)
-      rack-protection (= 2.2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
-    sinatra-contrib (2.2.2)
+    sinatra-contrib (2.2.3)
       multi_json
       mustermann (~> 2.0)
-      rack-protection (= 2.2.2)
-      sinatra (= 2.2.2)
+      rack-protection (= 2.2.3)
+      sinatra (= 2.2.3)
       tilt (~> 2.0)
     thread_safe (0.3.6)
     tilt (2.0.11)