diff --git a/Gemfile.lock b/Gemfile.lock
index 8aeb65962b1..24f25bf5dda 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -351,7 +351,7 @@ GEM
     ostruct (0.6.1)
     palm_civet (1.1.0)
     parallel (1.26.3)
-    parallel_tests (4.9.1)
+    parallel_tests (5.1.0)
       parallel
     parser (3.3.7.0)
       ast (~> 2.4.1)