diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6416b6b..846245f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.5.1] - 2022-08-15
+
+### Fixed
+- "[New caching doesn't honor request! calls](https://github.com/fschuindt/firebase_id_token/issues/35)", by reverting "[Caching certificates on memory.](https://github.com/fschuindt/firebase_id_token/pull/33)", PR #33.
+
 ## [2.5.0] - 2022-04-13
 
 ### Fixed
@@ -109,6 +114,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [0.1.0] - 2017-04-23
 *Version removed.*
 
+[2.5.1]: https://github.com/fschuindt/firebase_id_token/compare/2.5.0...2.5.1
 [2.5.0]: https://github.com/fschuindt/firebase_id_token/compare/2.4.0...2.5.0
 [2.4.0]: https://github.com/fschuindt/firebase_id_token/compare/2.3.2...2.4.0
 [2.3.2]: https://github.com/fschuindt/firebase_id_token/compare/2.3.1...2.3.2
diff --git a/README.md b/README.md
index 09cf133..67ee6ea 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ gem install firebase_id_token
 
 or in your Gemfile
 ```
-gem 'firebase_id_token', '~> 2.5.0'
+gem 'firebase_id_token', '~> 2.5.1'
 ```
 then
 ```
diff --git a/lib/firebase_id_token/signature.rb b/lib/firebase_id_token/signature.rb
index 0232565..e056ef4 100644
--- a/lib/firebase_id_token/signature.rb
+++ b/lib/firebase_id_token/signature.rb
@@ -78,20 +78,7 @@ def initialize(jwt_token, raise_error: false)
 
     # @see Signature.verify
     def verify
-      var_name = :_firebase_id_token_cert
-      Thread.current[var_name] ||= {
-        cert: nil,
-        expires_at: Time.now.utc - 1
-      }
-
-      if Thread.current[var_name][:expires_at] <= Time.now.utc
-        Thread.current[var_name] = {
-          cert: firebase_id_token_certificates.find(@kid, raise_error: @raise_error),
-          expires_at: Time.now.utc + firebase_id_token_certificates.ttl
-        }
-      end
-
-      certificate = Thread.current[var_name][:cert]
+      certificate = firebase_id_token_certificates.find(@kid, raise_error: @raise_error)
       return unless certificate
 
       payload = decode_jwt_payload(@jwt_token, certificate.public_key)
diff --git a/lib/firebase_id_token/testing/certificates.rb b/lib/firebase_id_token/testing/certificates.rb
index 2fb1c42..eed40fa 100644
--- a/lib/firebase_id_token/testing/certificates.rb
+++ b/lib/firebase_id_token/testing/certificates.rb
@@ -80,10 +80,6 @@ def self.read_jwt_file
           )
         )
       end
-
-      def self.ttl
-        10
-      end
     end
   end
 end
diff --git a/lib/firebase_id_token/version.rb b/lib/firebase_id_token/version.rb
index 6636ac1..174ff8d 100644
--- a/lib/firebase_id_token/version.rb
+++ b/lib/firebase_id_token/version.rb
@@ -1,3 +1,3 @@
 module FirebaseIdToken
-  VERSION = '2.5.0'
+  VERSION = '2.5.1'
 end