diff --git a/Gemfile.lock b/Gemfile.lock
index 842a2b1e..d966d436 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,10 +13,10 @@ GEM
       tilt (~> 1.3, >= 1.3.4)
     sinatra-param (1.2.2)
       sinatra (~> 1.3)
-    thin (1.6.2)
-      daemons (>= 1.0.9)
-      eventmachine (>= 1.0.0)
-      rack (>= 1.0.0)
+    thin (1.6.3)
+      daemons (~> 1.0, >= 1.0.9)
+      eventmachine (~> 1.0)
+      rack (~> 1.0)
     tilt (1.4.1)
 
 PLATFORMS