diff --git a/back-end/Gemfile.lock b/back-end/Gemfile.lock
index 8376bc4..8cbd571 100644
--- a/back-end/Gemfile.lock
+++ b/back-end/Gemfile.lock
@@ -48,13 +48,13 @@ GEM
       msgpack (~> 1.0)
     builder (3.2.4)
     byebug (11.1.3)
-    concurrent-ruby (1.1.7)
+    concurrent-ruby (1.1.10)
     crass (1.0.6)
     erubi (1.9.0)
     ffi (1.13.1)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
-    i18n (1.8.5)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jwt (2.2.2)
     listen (3.1.5)
@@ -69,10 +69,12 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.14.2)
+    minitest (5.17.0)
     msgpack (1.3.3)
     nio4r (2.5.3)
     nokogiri (1.10.10)
@@ -126,7 +128,7 @@ GEM
     sqlite3 (1.4.2)
     thor (1.0.1)
     thread_safe (0.3.6)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.3)
       websocket-extensions (>= 0.1.0)