diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 94e0a71..66042cc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,6 +20,7 @@ jobs:
           - gemfiles/faraday_2.0.gemfile
           - gemfiles/faraday_2.1.gemfile
           - gemfiles/faraday_2.2.gemfile
+          - gemfiles/faraday_2.3.gemfile
     env:
       BUNDLE_GEMFILE: ${{ matrix.gemfile }}
     steps:
diff --git a/Appraisals b/Appraisals
index f58563d..85df6c2 100644
--- a/Appraisals
+++ b/Appraisals
@@ -11,3 +11,7 @@ end
 appraise 'faraday-2.2' do
   gem 'faraday', '~> 2.2.0'
 end
+
+appraise 'faraday-2.3' do
+  gem 'faraday', '~> 2.3.0'
+end
diff --git a/gemfiles/faraday_2.3.gemfile b/gemfiles/faraday_2.3.gemfile
new file mode 100644
index 0000000..f6272ff
--- /dev/null
+++ b/gemfiles/faraday_2.3.gemfile
@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "faraday", "~> 2.3.0"
+
+gemspec path: "../"
diff --git a/spec/faraday_middleware/aws_sig_v4_instance_profile_credentials_spec.rb b/spec/faraday_middleware/aws_sig_v4_instance_profile_credentials_spec.rb
index 18ec820..ec947ba 100644
--- a/spec/faraday_middleware/aws_sig_v4_instance_profile_credentials_spec.rb
+++ b/spec/faraday_middleware/aws_sig_v4_instance_profile_credentials_spec.rb
@@ -92,6 +92,7 @@ def faraday(credentials_provider, options = {}, &block)
       d162df96dee6beb5f19d114fc5d3373e02d42fcf5b80822747df42f330d76892
       c6cf61acd4fe0a0e70954a392510e6032d4143212c3ab86b210c0640141b7781
       2d26efa112a023b96a72f4e447d11ba199c5e319038d65d8ec718c9a3c16a70f
+      5eb8a5c4e55fc4c79831f4a0c64e6982f70ecf92a0b9746b19f31aed70abe805
     ].join('|')})"))
 
     # 50 minutes after
@@ -109,6 +110,7 @@ def faraday(credentials_provider, options = {}, &block)
       f0f3939d879bfe26a1e4d3d221d38ed69a76ca715e8d6be00968d162dc20f6f6
       fe734f0838842af459321e8cdb9a1e2df55dd1d38f931e6c7c7b64cf888edf0d
       e63d67d13b49d2268ca3ee14a434b6cd3f674e0c89d02c3c464b724c41680b7a
+      ceb35033665fffebd861eec8626128a5a23d603c90d65dc93170c3b893e78121
     ].join('|')})"))
 
     # 10 minutes after
@@ -126,6 +128,7 @@ def faraday(credentials_provider, options = {}, &block)
       b8db4e5318ef683ff574ad16c16f96866f56d81b5bf591f76aab9537563ab2b2
       146d257eb03c67e6ef74cb56adc4db29c88bb8aa4167d3b39f45c964c36bef7f
       2cdcbb53d0a8db29b59f70e413aab718cc55256382814fd1e5f93f1939370a2c
+      71b7e9e9cff745532141cb04b9143a397b52a5f76ff4abe9b456434b32a0ad3d
     ].join('|')})"))
   end
 end
diff --git a/spec/faraday_middleware/aws_sig_v4_spec.rb b/spec/faraday_middleware/aws_sig_v4_spec.rb
index c288539..29f5434 100644
--- a/spec/faraday_middleware/aws_sig_v4_spec.rb
+++ b/spec/faraday_middleware/aws_sig_v4_spec.rb
@@ -82,6 +82,7 @@ def faraday(options = {}, &block)
         cb93fbe9b4ba7fe373c4e31c8dd3447ac0e459b87b8d6715f31be982c7676629
         80fc16ff57e13c9971d12df5edd68aa4c342b070cdfb19c95152802d2a524743
         4c11e411098ddf7c014bc536ce75cc7109db3c514fc909e24c872abc6ae62d13
+        ae563772700a7de79f3564e3b4b5df36fc978ad09cba895dbd1cad96df54536e
       ].join('|')})"
     end
 
@@ -98,6 +99,7 @@ def faraday(options = {}, &block)
           a9c40d1e3c7f79841f277b0cf103a4e75c973980e9aff3624462fb2a506c9cc9
           81c2ffe0dcec219164166dca2f950f63a74a634280fb941175b1766e2eabdb17
           07ca1b4ea43634570e49674baec593b832b7703b11e69c5e036a6b3123fa5746
+          5ba5f2e7c34bda12226ae327475be7c823599987f279c1f93bf03332ffcb4258
         ].join('|')})"
       end
 
@@ -113,6 +115,7 @@ def faraday(options = {}, &block)
           05bbc8854a20b3df25a0766ad1e06c0f1051065978b7a44d7e16a6f5259e6fee
           16ed3de9531a1c85f1610a23c67d552d368819b48f1937e2a22f36394111d616
           56c169dbf61ee1a75517948184e9ee213700514f76753c1e8e9556809b3d4a27
+          aa8c31832063efe3939d1c828cb60d503a6e46e15fcae6ba18cc3fd9d9827a38
         ].join('|')})"
       end