diff --git a/Gemfile.lock b/Gemfile.lock
index e7f83ea..d3769c0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,7 @@ GEM
     mini_mime (1.1.5)
     multi_test (1.1.0)
     parallel (1.24.0)
-    parallel_tests (4.5.2)
+    parallel_tests (4.6.0)
       parallel
     parser (3.3.0.5)
       ast (~> 2.4.1)