diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index eb7cbd88c..1d84b5149 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.323.0"
+  ".": "0.324.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index cb9d34e48..7efaaa57e 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 217
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-10d8a2e25ff71893e14a81477ef7dbbf761af689e6ff074e13da10729a75cc9d.yml
-openapi_spec_hash: 77a4f7c4b166e73a84c3b7f4e177631c
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-94d559b14c3611637885b103aa75adb26dff816369b1fdb758440e288d1ea83b.yml
+openapi_spec_hash: 4e257b20b410526bc54fd6ced9db3a5d
 config_hash: e1885b38eded054b77308a024c5d80cc
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c85c9076..6ffcd3055 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.324.0 (2025-09-09)
+
+Full Changelog: [v0.323.0...v0.324.0](https://github.com/Increase/increase-python/compare/v0.323.0...v0.324.0)
+
+### Features
+
+* **api:** api update ([e92e8b4](https://github.com/Increase/increase-python/commit/e92e8b43bc4207ffc6a6f4c2b53bef35865a4ae6))
+
 ## 0.323.0 (2025-09-09)
 
 Full Changelog: [v0.322.0...v0.323.0](https://github.com/Increase/increase-python/compare/v0.322.0...v0.323.0)
diff --git a/pyproject.toml b/pyproject.toml
index 2e3370f09..cfe0471c2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "increase"
-version = "0.323.0"
+version = "0.324.0"
 description = "The official Python library for the increase API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/increase/_version.py b/src/increase/_version.py
index 260e926a6..1c34ccef5 100644
--- a/src/increase/_version.py
+++ b/src/increase/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "increase"
-__version__ = "0.323.0"  # x-release-please-version
+__version__ = "0.324.0"  # x-release-please-version
diff --git a/src/increase/types/real_time_decision_action_params.py b/src/increase/types/real_time_decision_action_params.py
index c237c1b8f..a1e1d2887 100644
--- a/src/increase/types/real_time_decision_action_params.py
+++ b/src/increase/types/real_time_decision_action_params.py
@@ -165,34 +165,6 @@ class CardAuthorization(TypedDict, total=False):
     decline.
     """
 
-    decline_reason: Literal[
-        "insufficient_funds",
-        "transaction_never_allowed",
-        "exceeds_approval_limit",
-        "card_temporarily_disabled",
-        "suspected_fraud",
-        "other",
-    ]
-    """The reason the card authorization was declined.
-
-    This translates to a specific decline code that is sent to the card network.
-    This field is deprecated, please transition to using the `decline` object as
-    this field will be removed in a future release.
-
-    - `insufficient_funds` - The cardholder does not have sufficient funds to cover
-      the transaction. The merchant may attempt to process the transaction again.
-    - `transaction_never_allowed` - This type of transaction is not allowed for this
-      card. This transaction should not be retried.
-    - `exceeds_approval_limit` - The transaction amount exceeds the cardholder's
-      approval limit. The merchant may attempt to process the transaction again.
-    - `card_temporarily_disabled` - The card has been temporarily disabled or not
-      yet activated. The merchant may attempt to process the transaction again.
-    - `suspected_fraud` - The transaction is suspected to be fraudulent. The
-      merchant may attempt to process the transaction again.
-    - `other` - The transaction was declined for another reason. The merchant may
-      attempt to process the transaction again. This should be used sparingly.
-    """
-
 
 class DigitalWalletAuthenticationSuccess(TypedDict, total=False):
     email: str
diff --git a/tests/api_resources/test_real_time_decisions.py b/tests/api_resources/test_real_time_decisions.py
index 90365816b..eae0309ae 100644
--- a/tests/api_resources/test_real_time_decisions.py
+++ b/tests/api_resources/test_real_time_decisions.py
@@ -77,7 +77,6 @@ def test_method_action_with_all_params(self, client: Increase) -> None:
                     }
                 },
                 "decline": {"reason": "insufficient_funds"},
-                "decline_reason": "insufficient_funds",
             },
             digital_wallet_authentication={
                 "result": "success",
@@ -193,7 +192,6 @@ async def test_method_action_with_all_params(self, async_client: AsyncIncrease)
                     }
                 },
                 "decline": {"reason": "insufficient_funds"},
-                "decline_reason": "insufficient_funds",
             },
             digital_wallet_authentication={
                 "result": "success",