diff --git a/gemfiles/2.7/Gemfile.lock b/gemfiles/2.7/Gemfile.lock
index f4e8e3f8ec..c977fa14e7 100644
--- a/gemfiles/2.7/Gemfile.lock
+++ b/gemfiles/2.7/Gemfile.lock
@@ -18,7 +18,7 @@ GEM
     rake-compiler (1.2.8)
       rake
     rbs (3.1.3)
-    test-unit (3.6.2)
+    test-unit (3.6.4)
       power_assert
 
 PLATFORMS