diff --git a/Gemfile.lock b/Gemfile.lock
index 2e8cdfb894b..bfd8f003537 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -308,7 +308,7 @@ GEM
       openssl (> 2.0)
     optimist (3.0.1)
     parallel (1.23.0)
-    parallel_tests (4.2.0)
+    parallel_tests (4.2.1)
       parallel
     parser (3.2.2.1)
       ast (~> 2.4.1)