diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e25de8c46..cd675b327 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.392.0"
+  ".": "0.393.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index ade5a4601..6f42a9fee 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 227
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-9e8b4907003e0149ea10d8c95b2facfbc011f366cea40fe86b5f02940e68998d.yml
-openapi_spec_hash: e93ee5c48421038334b8961b303465d6
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-0281c1d774b1853b7b09bbce88b8d6e0301179b68d53627c5940edd7d2f8b180.yml
+openapi_spec_hash: e22a9d6a4f0f32976d0ac9dd7e6d7dd0
 config_hash: ca52ca9a2968f330339fd50c1a386e05
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c5ace69d..8f336fd97 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.393.0 (2026-01-07)
+
+Full Changelog: [v0.392.0...v0.393.0](https://github.com/Increase/increase-java/compare/v0.392.0...v0.393.0)
+
+### Features
+
+* **api:** api update ([8aa31c7](https://github.com/Increase/increase-java/commit/8aa31c7bf75c67e3ebd77b3d87026ad73a95ba9f))
+
 ## 0.392.0 (2026-01-07)
 
 Full Changelog: [v0.391.0...v0.392.0](https://github.com/Increase/increase-java/compare/v0.391.0...v0.392.0)
diff --git a/README.md b/README.md
index aead2074f..54061db68 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/com.increase.api/increase-java)](https://central.sonatype.com/artifact/com.increase.api/increase-java/0.392.0)
-[![javadoc](https://javadoc.io/badge2/com.increase.api/increase-java/0.392.0/javadoc.svg)](https://javadoc.io/doc/com.increase.api/increase-java/0.392.0)
+[![Maven Central](https://img.shields.io/maven-central/v/com.increase.api/increase-java)](https://central.sonatype.com/artifact/com.increase.api/increase-java/0.393.0)
+[![javadoc](https://javadoc.io/badge2/com.increase.api/increase-java/0.393.0/javadoc.svg)](https://javadoc.io/doc/com.increase.api/increase-java/0.393.0)
 
 <!-- x-release-please-end -->
 
@@ -13,7 +13,7 @@ The Increase Java SDK is similar to the Increase Kotlin SDK but with minor diffe
 
 <!-- x-release-please-start-version -->
 
-The REST API documentation can be found on [increase.com](https://increase.com/documentation). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.increase.api/increase-java/0.392.0).
+The REST API documentation can be found on [increase.com](https://increase.com/documentation). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.increase.api/increase-java/0.393.0).
 
 <!-- x-release-please-end -->
 
@@ -24,7 +24,7 @@ The REST API documentation can be found on [increase.com](https://increase.com/d
 ### Gradle
 
 ```kotlin
-implementation("com.increase.api:increase-java:0.392.0")
+implementation("com.increase.api:increase-java:0.393.0")
 ```
 
 ### Maven
@@ -33,7 +33,7 @@ implementation("com.increase.api:increase-java:0.392.0")
 <dependency>
   <groupId>com.increase.api</groupId>
   <artifactId>increase-java</artifactId>
-  <version>0.392.0</version>
+  <version>0.393.0</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index ea5627198..fcf832a95 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ repositories {
 
 allprojects {
     group = "com.increase.api"
-    version = "0.392.0" // x-release-please-version
+    version = "0.393.0" // x-release-please-version
 }
 
 subprojects {
diff --git a/increase-java-core/src/main/kotlin/com/increase/api/models/entities/EntityUpdateParams.kt b/increase-java-core/src/main/kotlin/com/increase/api/models/entities/EntityUpdateParams.kt
index 6f0b1a7ad..776190576 100644
--- a/increase-java-core/src/main/kotlin/com/increase/api/models/entities/EntityUpdateParams.kt
+++ b/increase-java-core/src/main/kotlin/com/increase/api/models/entities/EntityUpdateParams.kt
@@ -933,6 +933,7 @@ private constructor(
     private constructor(
         private val address: JsonField<Address>,
         private val email: JsonField<String>,
+        private val incorporationState: JsonField<String>,
         private val industryCode: JsonField<String>,
         private val name: JsonField<String>,
         private val additionalProperties: MutableMap<String, JsonValue>,
@@ -942,11 +943,14 @@ private constructor(
         private constructor(
             @JsonProperty("address") @ExcludeMissing address: JsonField<Address> = JsonMissing.of(),
             @JsonProperty("email") @ExcludeMissing email: JsonField<String> = JsonMissing.of(),
+            @JsonProperty("incorporation_state")
+            @ExcludeMissing
+            incorporationState: JsonField<String> = JsonMissing.of(),
             @JsonProperty("industry_code")
             @ExcludeMissing
             industryCode: JsonField<String> = JsonMissing.of(),
             @JsonProperty("name") @ExcludeMissing name: JsonField<String> = JsonMissing.of(),
-        ) : this(address, email, industryCode, name, mutableMapOf())
+        ) : this(address, email, incorporationState, industryCode, name, mutableMapOf())
 
         /**
          * The entity's physical address. Mail receiving locations like PO Boxes and PMB's are
@@ -966,6 +970,16 @@ private constructor(
          */
         fun email(): Optional<String> = email.getOptional("email")
 
+        /**
+         * The two-letter United States Postal Service (USPS) abbreviation for the corporation's
+         * state of incorporation.
+         *
+         * @throws IncreaseInvalidDataException if the JSON field has an unexpected type (e.g. if
+         *   the server responded with an unexpected value).
+         */
+        fun incorporationState(): Optional<String> =
+            incorporationState.getOptional("incorporation_state")
+
         /**
          * The North American Industry Classification System (NAICS) code for the corporation's
          * primary line of business. This is a number, like `5132` for `Software Publishers`. A full
@@ -999,6 +1013,16 @@ private constructor(
          */
         @JsonProperty("email") @ExcludeMissing fun _email(): JsonField<String> = email
 
+        /**
+         * Returns the raw JSON value of [incorporationState].
+         *
+         * Unlike [incorporationState], this method doesn't throw if the JSON field has an
+         * unexpected type.
+         */
+        @JsonProperty("incorporation_state")
+        @ExcludeMissing
+        fun _incorporationState(): JsonField<String> = incorporationState
+
         /**
          * Returns the raw JSON value of [industryCode].
          *
@@ -1039,6 +1063,7 @@ private constructor(
 
             private var address: JsonField<Address> = JsonMissing.of()
             private var email: JsonField<String> = JsonMissing.of()
+            private var incorporationState: JsonField<String> = JsonMissing.of()
             private var industryCode: JsonField<String> = JsonMissing.of()
             private var name: JsonField<String> = JsonMissing.of()
             private var additionalProperties: MutableMap<String, JsonValue> = mutableMapOf()
@@ -1047,6 +1072,7 @@ private constructor(
             internal fun from(corporation: Corporation) = apply {
                 address = corporation.address
                 email = corporation.email
+                incorporationState = corporation.incorporationState
                 industryCode = corporation.industryCode
                 name = corporation.name
                 additionalProperties = corporation.additionalProperties.toMutableMap()
@@ -1082,6 +1108,24 @@ private constructor(
              */
             fun email(email: JsonField<String>) = apply { this.email = email }
 
+            /**
+             * The two-letter United States Postal Service (USPS) abbreviation for the corporation's
+             * state of incorporation.
+             */
+            fun incorporationState(incorporationState: String) =
+                incorporationState(JsonField.of(incorporationState))
+
+            /**
+             * Sets [Builder.incorporationState] to an arbitrary JSON value.
+             *
+             * You should usually call [Builder.incorporationState] with a well-typed [String] value
+             * instead. This method is primarily for setting the field to an undocumented or not yet
+             * supported value.
+             */
+            fun incorporationState(incorporationState: JsonField<String>) = apply {
+                this.incorporationState = incorporationState
+            }
+
             /**
              * The North American Industry Classification System (NAICS) code for the corporation's
              * primary line of business. This is a number, like `5132` for `Software Publishers`. A
@@ -1138,7 +1182,14 @@ private constructor(
              * Further updates to this [Builder] will not mutate the returned instance.
              */
             fun build(): Corporation =
-                Corporation(address, email, industryCode, name, additionalProperties.toMutableMap())
+                Corporation(
+                    address,
+                    email,
+                    incorporationState,
+                    industryCode,
+                    name,
+                    additionalProperties.toMutableMap(),
+                )
         }
 
         private var validated: Boolean = false
@@ -1150,6 +1201,7 @@ private constructor(
 
             address().ifPresent { it.validate() }
             email()
+            incorporationState()
             industryCode()
             name()
             validated = true
@@ -1173,6 +1225,7 @@ private constructor(
         internal fun validity(): Int =
             (address.asKnown().getOrNull()?.validity() ?: 0) +
                 (if (email.asKnown().isPresent) 1 else 0) +
+                (if (incorporationState.asKnown().isPresent) 1 else 0) +
                 (if (industryCode.asKnown().isPresent) 1 else 0) +
                 (if (name.asKnown().isPresent) 1 else 0)
 
@@ -1508,19 +1561,27 @@ private constructor(
             return other is Corporation &&
                 address == other.address &&
                 email == other.email &&
+                incorporationState == other.incorporationState &&
                 industryCode == other.industryCode &&
                 name == other.name &&
                 additionalProperties == other.additionalProperties
         }
 
         private val hashCode: Int by lazy {
-            Objects.hash(address, email, industryCode, name, additionalProperties)
+            Objects.hash(
+                address,
+                email,
+                incorporationState,
+                industryCode,
+                name,
+                additionalProperties,
+            )
         }
 
         override fun hashCode(): Int = hashCode
 
         override fun toString() =
-            "Corporation{address=$address, email=$email, industryCode=$industryCode, name=$name, additionalProperties=$additionalProperties}"
+            "Corporation{address=$address, email=$email, incorporationState=$incorporationState, industryCode=$industryCode, name=$name, additionalProperties=$additionalProperties}"
     }
 
     /**
diff --git a/increase-java-core/src/test/kotlin/com/increase/api/models/entities/EntityUpdateParamsTest.kt b/increase-java-core/src/test/kotlin/com/increase/api/models/entities/EntityUpdateParamsTest.kt
index 517c9a901..783ea69dd 100644
--- a/increase-java-core/src/test/kotlin/com/increase/api/models/entities/EntityUpdateParamsTest.kt
+++ b/increase-java-core/src/test/kotlin/com/increase/api/models/entities/EntityUpdateParamsTest.kt
@@ -24,6 +24,7 @@ internal class EntityUpdateParamsTest {
                             .build()
                     )
                     .email("dev@stainless.com")
+                    .incorporationState("x")
                     .industryCode("x")
                     .name("x")
                     .build()
@@ -112,6 +113,7 @@ internal class EntityUpdateParamsTest {
                                 .build()
                         )
                         .email("dev@stainless.com")
+                        .incorporationState("x")
                         .industryCode("x")
                         .name("x")
                         .build()
@@ -188,6 +190,7 @@ internal class EntityUpdateParamsTest {
                             .build()
                     )
                     .email("dev@stainless.com")
+                    .incorporationState("x")
                     .industryCode("x")
                     .name("x")
                     .build()
diff --git a/increase-java-core/src/test/kotlin/com/increase/api/services/async/EntityServiceAsyncTest.kt b/increase-java-core/src/test/kotlin/com/increase/api/services/async/EntityServiceAsyncTest.kt
index 13828329f..1d3439868 100644
--- a/increase-java-core/src/test/kotlin/com/increase/api/services/async/EntityServiceAsyncTest.kt
+++ b/increase-java-core/src/test/kotlin/com/increase/api/services/async/EntityServiceAsyncTest.kt
@@ -503,6 +503,7 @@ internal class EntityServiceAsyncTest {
                                     .build()
                             )
                             .email("dev@stainless.com")
+                            .incorporationState("x")
                             .industryCode("x")
                             .name("x")
                             .build()
diff --git a/increase-java-core/src/test/kotlin/com/increase/api/services/blocking/EntityServiceTest.kt b/increase-java-core/src/test/kotlin/com/increase/api/services/blocking/EntityServiceTest.kt
index b20e0b1c7..7491ad584 100644
--- a/increase-java-core/src/test/kotlin/com/increase/api/services/blocking/EntityServiceTest.kt
+++ b/increase-java-core/src/test/kotlin/com/increase/api/services/blocking/EntityServiceTest.kt
@@ -501,6 +501,7 @@ internal class EntityServiceTest {
                                     .build()
                             )
                             .email("dev@stainless.com")
+                            .incorporationState("x")
                             .industryCode("x")
                             .name("x")
                             .build()