diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 2eb08f5e..90a996e6 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -143,11 +143,11 @@ GEM
     cuprite (0.15)
       capybara (~> 3.0)
       ferrum (~> 0.14.0)
-    database_cleaner (2.0.2)
+    database_cleaner (2.1.0)
       database_cleaner-active_record (>= 2, < 3)
-    database_cleaner-active_record (2.1.0)
+    database_cleaner-active_record (2.2.2)
       activerecord (>= 5.a)
-      database_cleaner-core (~> 2.0.0)
+      database_cleaner-core (~> 2.0)
     database_cleaner-core (2.0.1)
     database_cleaner-mongoid (2.0.1)
       database_cleaner-core (~> 2.0.0)