diff --git a/backend/_archive/Gemfile b/backend/_archive/Gemfile
index 78ed2e1..63832b0 100644
--- a/backend/_archive/Gemfile
+++ b/backend/_archive/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3', '~> 1.4'
 # Use Puma as the app server
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 # gem 'jbuilder', '~> 2.7'
 # Use Redis adapter to run Action Cable in production
diff --git a/backend/_archive/Gemfile.lock b/backend/_archive/Gemfile.lock
index e5fc112..5ec675c 100644
--- a/backend/_archive/Gemfile.lock
+++ b/backend/_archive/Gemfile.lock
@@ -93,8 +93,8 @@ GEM
     msgpack (1.3.3-java)
     msgpack (1.3.3-x64-mingw32)
     msgpack (1.3.3-x86-mingw32)
-    nio4r (2.5.2)
-    nio4r (2.5.2-java)
+    nio4r (2.5.8)
+    nio4r (2.5.8-java)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     nokogiri (1.10.9-java)
@@ -102,9 +102,9 @@ GEM
       mini_portile2 (~> 2.4.0)
     nokogiri (1.10.9-x86-mingw32)
       mini_portile2 (~> 2.4.0)
-    puma (4.3.3)
+    puma (4.3.11)
       nio4r (~> 2.0)
-    puma (4.3.3-java)
+    puma (4.3.11-java)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-cors (1.1.1)
@@ -179,7 +179,7 @@ DEPENDENCIES
   bootsnap (>= 1.4.2)
   byebug
   listen (>= 3.0.5, < 3.2)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rack-cors
   rails (~> 6.0.2, >= 6.0.2.1)
   spring