diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index c654f61..108b198 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
     builder (3.2.4)
     byebug (11.1.3)
     coderay (1.1.3)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.1.10)
     connection_pool (2.2.5)
     crass (1.0.6)
     erubi (1.10.0)
@@ -79,9 +79,9 @@ GEM
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (2.0.1)
     ffi (1.15.4)
-    globalid (1.0.0)
+    globalid (1.0.1)
       activesupport (>= 5.0)
-    i18n (1.8.11)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jsonapi-serializer (2.2.0)
       activesupport (>= 4.2)
@@ -98,7 +98,7 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.2)
     mini_portile2 (2.8.0)
-    minitest (5.15.0)
+    minitest (5.17.0)
     nio4r (2.5.8)
     nokogiri (1.13.2)
       mini_portile2 (~> 2.8.0)
@@ -181,7 +181,7 @@ GEM
       redis (>= 4.2.0)
     slop (3.6.0)
     thor (1.2.1)
-    tzinfo (2.0.4)
+    tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.1.0)
     websocket-driver (0.7.5)