diff --git a/Gemfile.lock b/Gemfile.lock
index 07d13462cd8..4ca16cdc79a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -307,8 +307,8 @@ GEM
       mini_portile2 (~> 2.4.0)
     os (1.0.1)
     palm_civet (1.1.0)
-    parallel (1.19.2)
-    parallel_tests (3.3.0)
+    parallel (1.20.1)
+    parallel_tests (3.4.0)
       parallel
     parser (2.7.2.0)
       ast (~> 2.4.1)