diff --git a/Gemfile.lock b/Gemfile.lock
index 64dafcf..4bd92c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,7 +37,7 @@ GEM
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
       rspec-mocks (~> 3.13.0)
-    rspec-core (3.13.0)
+    rspec-core (3.13.1)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)