diff --git a/Gemfile.lock b/Gemfile.lock
index 64578824..1b571ebc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -315,7 +315,7 @@ GEM
       omniauth-oauth2 (~> 1.0)
     ostruct (0.6.3)
     parallel (2.3.0)
-    parallel_tests (5.8.0)
+    parallel_tests (5.9.0)
       parallel
     parser (3.3.13.0)
       ast (~> 2.4.1)