diff --git a/Gemfile.lock b/Gemfile.lock
index f078acf..6ef7ae8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GEM
       rspec-mocks (~> 3.9.0)
     rspec-core (3.9.1)
       rspec-support (~> 3.9.1)
-    rspec-expectations (3.9.0)
+    rspec-expectations (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-mocks (3.9.1)
@@ -42,4 +42,4 @@ DEPENDENCIES
   yard
 
 BUNDLED WITH
-   1.17.3
+   2.1.4