diff --git a/Gemfile.lock b/Gemfile.lock
index df4d41d..c8a9dfe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,19 +1,20 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    diff-lcs (1.2.5)
-    rspec (3.0.0)
-      rspec-core (~> 3.0.0)
-      rspec-expectations (~> 3.0.0)
-      rspec-mocks (~> 3.0.0)
-    rspec-core (3.0.2)
-      rspec-support (~> 3.0.0)
-    rspec-expectations (3.0.2)
+    diff-lcs (1.3)
+    rspec (3.9.0)
+      rspec-core (~> 3.9.0)
+      rspec-expectations (~> 3.9.0)
+      rspec-mocks (~> 3.9.0)
+    rspec-core (3.9.0)
+      rspec-support (~> 3.9.0)
+    rspec-expectations (3.9.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.0.0)
-    rspec-mocks (3.0.2)
-      rspec-support (~> 3.0.0)
-    rspec-support (3.0.2)
+      rspec-support (~> 3.9.0)
+    rspec-mocks (3.9.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.9.0)
+    rspec-support (3.9.0)
 
 PLATFORMS
   ruby