diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index f3dbfd2ad..4eb89879b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.26.0"
+  ".": "1.27.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index f77503ab4..ae7a72a04 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 202
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-aca6b5e100fcf8da7f6fc67bfbf47543f197f1c3fed52d5f1147b7cbad515546.yml
-openapi_spec_hash: 369011703600762a5a5d701b4e843f7b
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-66fad62aee38079ae7b0574a128763512b551d0b0f107a056bc981123d8e348d.yml
+openapi_spec_hash: 299b75e8d2f36e6fe3d2df4c10d2557c
 config_hash: a185e9a72778cc4658ea73fb3a7f1354
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 638f66cef..f0889578c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.27.0 (2025-08-07)
+
+Full Changelog: [v1.26.0...v1.27.0](https://github.com/Increase/increase-ruby/compare/v1.26.0...v1.27.0)
+
+### Features
+
+* **api:** api update ([44729b9](https://github.com/Increase/increase-ruby/commit/44729b9363b7c96a58f9e5bf77ffdbd981dc7a3e))
+
 ## 1.26.0 (2025-08-06)
 
 Full Changelog: [v1.25.0...v1.26.0](https://github.com/Increase/increase-ruby/compare/v1.25.0...v1.26.0)
diff --git a/Gemfile.lock b/Gemfile.lock
index 831b9f104..a16ca4453 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GIT
 PATH
   remote: .
   specs:
-    increase (1.26.0)
+    increase (1.27.0)
       connection_pool
 
 GEM
diff --git a/README.md b/README.md
index 2b2272a12..e2f493ca8 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To use this gem, install via Bundler by adding the following to your application
 <!-- x-release-please-start-version -->
 
 ```ruby
-gem "increase", "~> 1.26.0"
+gem "increase", "~> 1.27.0"
 ```
 
 <!-- x-release-please-end -->
diff --git a/lib/increase/models/file.rb b/lib/increase/models/file.rb
index 031b835d5..49fe80e70 100644
--- a/lib/increase/models/file.rb
+++ b/lib/increase/models/file.rb
@@ -114,6 +114,9 @@ module Direction
       module Purpose
         extend Increase::Internal::Type::Enum
 
+        # A file to be attached to a Card Dispute.
+        CARD_DISPUTE_ATTACHMENT = :card_dispute_attachment
+
         # An image of the front of a check, used for check deposits.
         CHECK_IMAGE_FRONT = :check_image_front
 
diff --git a/lib/increase/models/file_create_params.rb b/lib/increase/models/file_create_params.rb
index 8316325b1..fe5b3b157 100644
--- a/lib/increase/models/file_create_params.rb
+++ b/lib/increase/models/file_create_params.rb
@@ -43,6 +43,9 @@ class FileCreateParams < Increase::Internal::Type::BaseModel
       module Purpose
         extend Increase::Internal::Type::Enum
 
+        # A file to be attached to a Card Dispute.
+        CARD_DISPUTE_ATTACHMENT = :card_dispute_attachment
+
         # An image of the front of a check, used for check deposits.
         CHECK_IMAGE_FRONT = :check_image_front
 
diff --git a/lib/increase/models/file_list_params.rb b/lib/increase/models/file_list_params.rb
index 788b266bd..e62cf062e 100644
--- a/lib/increase/models/file_list_params.rb
+++ b/lib/increase/models/file_list_params.rb
@@ -116,6 +116,9 @@ class Purpose < Increase::Internal::Type::BaseModel
         module In
           extend Increase::Internal::Type::Enum
 
+          # A file to be attached to a Card Dispute.
+          CARD_DISPUTE_ATTACHMENT = :card_dispute_attachment
+
           # An image of the front of a check, used for check deposits.
           CHECK_IMAGE_FRONT = :check_image_front
 
diff --git a/lib/increase/version.rb b/lib/increase/version.rb
index d8e7c5b51..6a0c0b801 100644
--- a/lib/increase/version.rb
+++ b/lib/increase/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Increase
-  VERSION = "1.26.0"
+  VERSION = "1.27.0"
 end
diff --git a/rbi/increase/models/file.rbi b/rbi/increase/models/file.rbi
index bc9c5eaf5..a35346d97 100644
--- a/rbi/increase/models/file.rbi
+++ b/rbi/increase/models/file.rbi
@@ -140,6 +140,10 @@ module Increase
         TaggedSymbol = T.type_alias { T.all(Symbol, Increase::File::Purpose) }
         OrSymbol = T.type_alias { T.any(Symbol, String) }
 
+        # A file to be attached to a Card Dispute.
+        CARD_DISPUTE_ATTACHMENT =
+          T.let(:card_dispute_attachment, Increase::File::Purpose::TaggedSymbol)
+
         # An image of the front of a check, used for check deposits.
         CHECK_IMAGE_FRONT =
           T.let(:check_image_front, Increase::File::Purpose::TaggedSymbol)
diff --git a/rbi/increase/models/file_create_params.rbi b/rbi/increase/models/file_create_params.rbi
index 8faf0e1ba..239362d16 100644
--- a/rbi/increase/models/file_create_params.rbi
+++ b/rbi/increase/models/file_create_params.rbi
@@ -70,6 +70,13 @@ module Increase
           T.type_alias { T.all(Symbol, Increase::FileCreateParams::Purpose) }
         OrSymbol = T.type_alias { T.any(Symbol, String) }
 
+        # A file to be attached to a Card Dispute.
+        CARD_DISPUTE_ATTACHMENT =
+          T.let(
+            :card_dispute_attachment,
+            Increase::FileCreateParams::Purpose::TaggedSymbol
+          )
+
         # An image of the front of a check, used for check deposits.
         CHECK_IMAGE_FRONT =
           T.let(
diff --git a/rbi/increase/models/file_list_params.rbi b/rbi/increase/models/file_list_params.rbi
index 4144919ea..20bac76b3 100644
--- a/rbi/increase/models/file_list_params.rbi
+++ b/rbi/increase/models/file_list_params.rbi
@@ -220,6 +220,13 @@ module Increase
             end
           OrSymbol = T.type_alias { T.any(Symbol, String) }
 
+          # A file to be attached to a Card Dispute.
+          CARD_DISPUTE_ATTACHMENT =
+            T.let(
+              :card_dispute_attachment,
+              Increase::FileListParams::Purpose::In::TaggedSymbol
+            )
+
           # An image of the front of a check, used for check deposits.
           CHECK_IMAGE_FRONT =
             T.let(
diff --git a/sig/increase/models/file.rbs b/sig/increase/models/file.rbs
index 08569f9e5..d89646e0c 100644
--- a/sig/increase/models/file.rbs
+++ b/sig/increase/models/file.rbs
@@ -71,7 +71,8 @@ module Increase
       end
 
       type purpose =
-        :check_image_front
+        :card_dispute_attachment
+        | :check_image_front
         | :check_image_back
         | :processed_check_image_front
         | :processed_check_image_back
@@ -103,6 +104,9 @@ module Increase
       module Purpose
         extend Increase::Internal::Type::Enum
 
+        # A file to be attached to a Card Dispute.
+        CARD_DISPUTE_ATTACHMENT: :card_dispute_attachment
+
         # An image of the front of a check, used for check deposits.
         CHECK_IMAGE_FRONT: :check_image_front
 
diff --git a/sig/increase/models/file_create_params.rbs b/sig/increase/models/file_create_params.rbs
index ae8686c34..12b0d1015 100644
--- a/sig/increase/models/file_create_params.rbs
+++ b/sig/increase/models/file_create_params.rbs
@@ -35,7 +35,8 @@ module Increase
       }
 
       type purpose =
-        :check_image_front
+        :card_dispute_attachment
+        | :check_image_front
         | :check_image_back
         | :mailed_check_image
         | :check_attachment
@@ -55,6 +56,9 @@ module Increase
       module Purpose
         extend Increase::Internal::Type::Enum
 
+        # A file to be attached to a Card Dispute.
+        CARD_DISPUTE_ATTACHMENT: :card_dispute_attachment
+
         # An image of the front of a check, used for check deposits.
         CHECK_IMAGE_FRONT: :check_image_front
 
diff --git a/sig/increase/models/file_list_params.rbs b/sig/increase/models/file_list_params.rbs
index 20dbbba91..1ee92bd2e 100644
--- a/sig/increase/models/file_list_params.rbs
+++ b/sig/increase/models/file_list_params.rbs
@@ -110,7 +110,8 @@ module Increase
         }
 
         type in_ =
-          :check_image_front
+          :card_dispute_attachment
+          | :check_image_front
           | :check_image_back
           | :processed_check_image_front
           | :processed_check_image_back
@@ -142,6 +143,9 @@ module Increase
         module In
           extend Increase::Internal::Type::Enum
 
+          # A file to be attached to a Card Dispute.
+          CARD_DISPUTE_ATTACHMENT: :card_dispute_attachment
+
           # An image of the front of a check, used for check deposits.
           CHECK_IMAGE_FRONT: :check_image_front