diff --git a/Gemfile.lock b/Gemfile.lock
index e45f968da..4e2c596a1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -240,7 +240,7 @@ GEM
       rack
     orm_adapter (0.5.0)
     parallel (1.19.2)
-    parallel_tests (3.0.0)
+    parallel_tests (3.1.0)
       parallel
     parser (2.7.1.4)
       ast (~> 2.4.1)