diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 1a816ace..fcb5ac5c 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -61,7 +61,7 @@ GEM
     builder (3.2.4)
     byebug (11.1.3)
     coderay (1.1.2)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.1.10)
     crass (1.0.6)
     database_cleaner (1.8.5)
     diff-lcs (1.3)
@@ -74,9 +74,9 @@ GEM
     faker (2.11.0)
       i18n (>= 1.6, < 2)
     ffi (1.12.2)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
-    i18n (1.8.2)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -92,7 +92,7 @@ GEM
     mimemagic (0.3.5)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.14.1)
+    minitest (5.17.0)
     msgpack (1.3.3)
     nio4r (2.5.2)
     nokogiri (1.10.9)
@@ -170,12 +170,12 @@ GEM
       sprockets (>= 3.0.0)
     thor (1.0.1)
     thread_safe (0.3.6)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.4)
-    zeitwerk (2.3.0)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby