diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index f32bafea..fcf5daf7 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.160.0"
+  ".": "0.161.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index e6f6388b..ffcfc72d 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 199
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-20b5808422396f14819d54eb4e784f9cb93645d7bddbc3129e8fcf0b39e377b7.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-3a8cddc4ecee394a7253767a8c87cf9f8a188ac4912ed2646bb2e17f6e75c967.yml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bdc43c82..6a920781 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.161.0 (2024-11-13)
+
+Full Changelog: [v0.160.0...v0.161.0](https://github.com/Increase/increase-python/compare/v0.160.0...v0.161.0)
+
+### Features
+
+* **api:** api update ([#829](https://github.com/Increase/increase-python/issues/829)) ([25b1e0e](https://github.com/Increase/increase-python/commit/25b1e0e9891df0d6f45e947c9e3ddf9b90c2d8e6))
+
 ## 0.160.0 (2024-11-13)
 
 Full Changelog: [v0.159.0...v0.160.0](https://github.com/Increase/increase-python/compare/v0.159.0...v0.160.0)
diff --git a/pyproject.toml b/pyproject.toml
index 99040f41..e6cb027e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "increase"
-version = "0.160.0"
+version = "0.161.0"
 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 277448c4..ace8180d 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__ = "0.160.0"  # x-release-please-version
+__version__ = "0.161.0"  # 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 a1cb1504..832f8d25 100644
--- a/src/increase/types/real_time_decision_action_params.py
+++ b/src/increase/types/real_time_decision_action_params.py
@@ -81,6 +81,32 @@ class CardAuthorization(TypedDict, total=False):
     - `decline` - Decline the authorization.
     """
 
+    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.
+
+    - `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 f90f43f1..d49e4331 100644
--- a/tests/api_resources/test_real_time_decisions.py
+++ b/tests/api_resources/test_real_time_decisions.py
@@ -68,7 +68,10 @@ def test_method_action_with_all_params(self, client: Increase) -> None:
             real_time_decision_id="real_time_decision_j76n2e810ezcg3zh5qtn",
             card_authentication={"decision": "approve"},
             card_authentication_challenge={"result": "success"},
-            card_authorization={"decision": "approve"},
+            card_authorization={
+                "decision": "approve",
+                "decline_reason": "insufficient_funds",
+            },
             digital_wallet_authentication={
                 "result": "success",
                 "success": {
@@ -172,7 +175,10 @@ async def test_method_action_with_all_params(self, async_client: AsyncIncrease)
             real_time_decision_id="real_time_decision_j76n2e810ezcg3zh5qtn",
             card_authentication={"decision": "approve"},
             card_authentication_challenge={"result": "success"},
-            card_authorization={"decision": "approve"},
+            card_authorization={
+                "decision": "approve",
+                "decline_reason": "insufficient_funds",
+            },
             digital_wallet_authentication={
                 "result": "success",
                 "success": {