diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 1d867dc..43156cb 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -83,7 +83,7 @@ GEM
     byebug (11.0.1)
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
-    concurrent-ruby (1.1.5)
+    concurrent-ruby (1.1.10)
     connection_pool (2.2.2)
     crass (1.0.5)
     database_cleaner (1.7.0)
@@ -104,8 +104,8 @@ GEM
     faker (2.5.0)
       i18n (~> 1.6.0)
     ffi (1.11.1)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
     google-protobuf (3.9.2)
     googleapis-common-protos-types (1.0.4)
       google-protobuf (~> 3.0)
@@ -150,10 +150,12 @@ GEM
     mime-types (3.3)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0904)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.12.2)
+    minitest (5.17.0)
     msgpack (1.3.1)
     multi_xml (0.6.0)
     mustermann (1.0.3)
@@ -229,7 +231,7 @@ GEM
       sprockets (>= 3.0.0)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     virtus (1.0.5)
       axiom-types (~> 0.1)
@@ -239,7 +241,7 @@ GEM
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.4)
-    zeitwerk (2.1.10)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby