diff --git a/Library/Homebrew/test/Gemfile.lock b/Library/Homebrew/test/Gemfile.lock
index 2bfc0bb4e7..8685e96147 100644
--- a/Library/Homebrew/test/Gemfile.lock
+++ b/Library/Homebrew/test/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
       rspec-mocks (~> 3.8.0)
     rspec-core (3.8.0)
       rspec-support (~> 3.8.0)
-    rspec-expectations (3.8.0)
+    rspec-expectations (3.8.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-its (1.2.0)