diff --git a/Gemfile b/Gemfile
index 0d12fd6..602a2f1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '3.1.3'
 gem 'bootsnap', require: false
 gem 'bugsnag'
 gem 'dotenv-rails'
-gem 'faraday', '1.10.2' # 'google-cloud-language' が使えるように
+gem 'faraday', '2.9.2' # 'google-cloud-language' が使えるように
 gem 'google-api-client'
 gem 'google-cloud-language'
 gem 'jbuilder'
diff --git a/Gemfile.lock b/Gemfile.lock
index af0637c..c36fce1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,29 +95,12 @@ GEM
     factory_bot_rails (6.2.0)
       factory_bot (~> 6.2.0)
       railties (>= 5.0.0)
-    faraday (1.10.2)
-      faraday-em_http (~> 1.0)
-      faraday-em_synchrony (~> 1.0)
-      faraday-excon (~> 1.1)
-      faraday-httpclient (~> 1.0)
-      faraday-multipart (~> 1.0)
-      faraday-net_http (~> 1.0)
-      faraday-net_http_persistent (~> 1.0)
-      faraday-patron (~> 1.0)
-      faraday-rack (~> 1.0)
-      faraday-retry (~> 1.0)
-      ruby2_keywords (>= 0.0.4)
-    faraday-em_http (1.0.0)
-    faraday-em_synchrony (1.0.0)
-    faraday-excon (1.1.0)
-    faraday-httpclient (1.0.1)
-    faraday-multipart (1.0.4)
-      multipart-post (~> 2)
-    faraday-net_http (1.0.1)
-    faraday-net_http_persistent (1.2.0)
-    faraday-patron (1.0.0)
-    faraday-rack (1.0.0)
-    faraday-retry (1.0.3)
+    faraday (2.9.2)
+      faraday-net_http (>= 2.0, < 3.2)
+    faraday-net_http (3.1.0)
+      net-http
+    faraday-retry (2.2.1)
+      faraday (~> 2.0)
     ffi (1.15.5)
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
@@ -222,8 +205,10 @@ GEM
     minitest (5.16.3)
     msgpack (1.6.0)
     multi_json (1.15.0)
-    multipart-post (2.2.3)
+    multipart-post (2.4.1)
     naught (1.1.0)
+    net-http (0.4.1)
+      uri
     net-imap (0.3.1)
       net-protocol
     net-pop (0.1.2)
@@ -325,7 +310,6 @@ GEM
       rack (>= 1.1)
       rubocop (>= 1.33.0, < 2.0)
     ruby-progressbar (1.11.0)
-    ruby2_keywords (0.0.5)
     signet (0.17.0)
       addressable (~> 2.8)
       faraday (>= 0.17.5, < 3.a)
@@ -354,6 +338,7 @@ GEM
       unf_ext
     unf_ext (0.0.8.2)
     unicode-display_width (2.3.0)
+    uri (0.13.0)
     webrick (1.7.0)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
@@ -369,7 +354,7 @@ DEPENDENCIES
   debug
   dotenv-rails
   factory_bot_rails
-  faraday (= 1.10.2)
+  faraday (= 2.9.2)
   google-api-client
   google-cloud-language
   jbuilder