diff --git a/Gemfile.lock b/Gemfile.lock
index fe21bc9972..50e8fe7d9d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -671,7 +671,7 @@ GEM
     stripe (5.28.0)
     temple (0.8.2)
     test-prof (0.7.5)
-    test-unit (3.3.7)
+    test-unit (3.3.9)
       power_assert
     test_after_commit (1.2.2)
       activerecord (>= 3.2, < 5.0)