diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 4e7fded3..dadc0bb9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.480.0"
+  ".": "0.481.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 6d176607..bec177ee 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 241
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-e1702c4a3b65baa3aa2cd31f032b23eb84c83c663aaffba72794320adcfd164d.yml
-openapi_spec_hash: 57d3d06ec298932f6384d1f03c9ec0a8
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-a507102e6e65ff03ce152e53c8ca9ed97959b797ac87b00eca5d78be3c553502.yml
+openapi_spec_hash: 442ee94177455e035d8e84c85f5006f7
 config_hash: d48e9f65bcf642f92610034d6c43f07a
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17af728c..dcc5a738 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.481.0 (2026-04-12)
+
+Full Changelog: [v0.480.0...v0.481.0](https://github.com/Increase/increase-python/compare/v0.480.0...v0.481.0)
+
+### Features
+
+* **api:** api update ([6b38481](https://github.com/Increase/increase-python/commit/6b38481819f9e9dcfd3fcf0c1c995510bbb966d2))
+
 ## 0.480.0 (2026-04-12)
 
 Full Changelog: [v0.479.0...v0.480.0](https://github.com/Increase/increase-python/compare/v0.479.0...v0.480.0)
diff --git a/pyproject.toml b/pyproject.toml
index 5d34b2c8..3c501a74 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "increase"
-version = "0.480.0"
+version = "0.481.0"
 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 386e4f24..e8118850 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__ = "0.480.0"  # x-release-please-version
+__version__ = "0.481.0"  # x-release-please-version
diff --git a/src/increase/types/event.py b/src/increase/types/event.py
index 4e1ae34b..f7a8de3e 100644
--- a/src/increase/types/event.py
+++ b/src/increase/types/event.py
@@ -48,6 +48,7 @@ class Event(BaseModel):
         "card.updated",
         "card_payment.created",
         "card_payment.updated",
+        "card_purchase_supplement.created",
         "card_profile.created",
         "card_profile.updated",
         "card_dispute.created",
@@ -174,6 +175,8 @@ class Event(BaseModel):
     - `card.updated` - Occurs whenever a Card is updated.
     - `card_payment.created` - Occurs whenever a Card Payment is created.
     - `card_payment.updated` - Occurs whenever a Card Payment is updated.
+    - `card_purchase_supplement.created` - Occurs whenever a Card Purchase
+      Supplement is created.
     - `card_profile.created` - Occurs whenever a Card Profile is created.
     - `card_profile.updated` - Occurs whenever a Card Profile is updated.
     - `card_dispute.created` - Occurs whenever a Card Dispute is created.
diff --git a/src/increase/types/event_list_params.py b/src/increase/types/event_list_params.py
index bc0e7ba3..b6757f0e 100644
--- a/src/increase/types/event_list_params.py
+++ b/src/increase/types/event_list_params.py
@@ -58,6 +58,7 @@ class EventListParams(TypedDict, total=False):
                 "card.updated",
                 "card_payment.created",
                 "card_payment.updated",
+                "card_purchase_supplement.created",
                 "card_profile.created",
                 "card_profile.updated",
                 "card_dispute.created",
diff --git a/src/increase/types/event_subscription.py b/src/increase/types/event_subscription.py
index 3663f5c4..fbd06eaa 100644
--- a/src/increase/types/event_subscription.py
+++ b/src/increase/types/event_subscription.py
@@ -38,6 +38,7 @@ class SelectedEventCategory(BaseModel):
             "card.updated",
             "card_payment.created",
             "card_payment.updated",
+            "card_purchase_supplement.created",
             "card_profile.created",
             "card_profile.updated",
             "card_dispute.created",
@@ -162,6 +163,8 @@ class SelectedEventCategory(BaseModel):
     - `card.updated` - Occurs whenever a Card is updated.
     - `card_payment.created` - Occurs whenever a Card Payment is created.
     - `card_payment.updated` - Occurs whenever a Card Payment is updated.
+    - `card_purchase_supplement.created` - Occurs whenever a Card Purchase
+      Supplement is created.
     - `card_profile.created` - Occurs whenever a Card Profile is created.
     - `card_profile.updated` - Occurs whenever a Card Profile is updated.
     - `card_dispute.created` - Occurs whenever a Card Dispute is created.
diff --git a/src/increase/types/event_subscription_create_params.py b/src/increase/types/event_subscription_create_params.py
index c683d54e..62744d07 100644
--- a/src/increase/types/event_subscription_create_params.py
+++ b/src/increase/types/event_subscription_create_params.py
@@ -67,6 +67,7 @@ class SelectedEventCategory(TypedDict, total=False):
             "card.updated",
             "card_payment.created",
             "card_payment.updated",
+            "card_purchase_supplement.created",
             "card_profile.created",
             "card_profile.updated",
             "card_dispute.created",
@@ -191,6 +192,8 @@ class SelectedEventCategory(TypedDict, total=False):
     - `card.updated` - Occurs whenever a Card is updated.
     - `card_payment.created` - Occurs whenever a Card Payment is created.
     - `card_payment.updated` - Occurs whenever a Card Payment is updated.
+    - `card_purchase_supplement.created` - Occurs whenever a Card Purchase
+      Supplement is created.
     - `card_profile.created` - Occurs whenever a Card Profile is created.
     - `card_profile.updated` - Occurs whenever a Card Profile is updated.
     - `card_dispute.created` - Occurs whenever a Card Dispute is created.
diff --git a/src/increase/types/unwrap_webhook_event.py b/src/increase/types/unwrap_webhook_event.py
index 536c8303..17b8b599 100644
--- a/src/increase/types/unwrap_webhook_event.py
+++ b/src/increase/types/unwrap_webhook_event.py
@@ -48,6 +48,7 @@ class UnwrapWebhookEvent(BaseModel):
         "card.updated",
         "card_payment.created",
         "card_payment.updated",
+        "card_purchase_supplement.created",
         "card_profile.created",
         "card_profile.updated",
         "card_dispute.created",
@@ -174,6 +175,8 @@ class UnwrapWebhookEvent(BaseModel):
     - `card.updated` - Occurs whenever a Card is updated.
     - `card_payment.created` - Occurs whenever a Card Payment is created.
     - `card_payment.updated` - Occurs whenever a Card Payment is updated.
+    - `card_purchase_supplement.created` - Occurs whenever a Card Purchase
+      Supplement is created.
     - `card_profile.created` - Occurs whenever a Card Profile is created.
     - `card_profile.updated` - Occurs whenever a Card Profile is updated.
     - `card_dispute.created` - Occurs whenever a Card Dispute is created.