diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 60b61ffa..df9a2a47 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -63,7 +63,7 @@ GEM
       msgpack (~> 1.0)
     builder (3.2.3)
     byebug (11.0.1)
-    capybara (3.29.0)
+    capybara (3.32.1)
       addressable
       mini_mime (>= 0.1.3)
       nokogiri (~> 1.8)
@@ -103,10 +103,10 @@ GEM
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
-    public_suffix (4.0.1)
+    public_suffix (4.0.4)
     puma (4.3.3)
       nio4r (~> 2.0)
-    rack (2.0.8)
+    rack (2.2.2)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-test (1.1.0)
@@ -141,7 +141,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    regexp_parser (1.6.0)
+    regexp_parser (1.7.0)
     rubyzip (2.0.0)
     selenium-webdriver (3.142.5)
       childprocess (>= 0.5, < 3.0)