diff --git a/Gemfile b/Gemfile
index dbc3fff..8e5f5ce 100644
--- a/Gemfile
+++ b/Gemfile
@@ -41,7 +41,7 @@ group :development, :test do
   gem "rspec-rails", "3.2.3"
 
   # GUID generation
-  gem "uuid", "2.3.7"
+  gem "uuid", "2.3.8"
 
   # test database
   gem "sqlite3"
diff --git a/Gemfile.lock b/Gemfile.lock
index f7bdb60..07c0add 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -176,7 +176,7 @@ GEM
     thread_safe (0.3.5)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    uuid (2.3.7)
+    uuid (2.3.8)
       macaddr (~> 1.0)
 
 PLATFORMS
@@ -198,7 +198,7 @@ DEPENDENCIES
   simplecov (= 0.10.0)
   simplecov-rcov (= 0.2.3)
   sqlite3
-  uuid (= 2.3.7)
+  uuid (= 2.3.8)
 
 BUNDLED WITH
    1.10.3