diff --git a/build.gradle b/build.gradle
index b74d985..e02552e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -47,7 +47,7 @@ java {
 
 group = 'com.phenoml.maven'
 
-version = '10.2.0'
+version = '10.2.1'
 
 jar {
     dependsOn(":generatePomFileForMavenPublication")
@@ -78,7 +78,7 @@ publishing {
         maven(MavenPublication) {
             groupId = 'com.phenoml.maven'
             artifactId = 'phenoml-java-sdk'
-            version = '10.2.0'
+            version = '10.2.1'
             from components.java
             pom {
                 name = 'phenoml'
diff --git a/changelog.md b/changelog.md
index 9a2aa62..41b1c02 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,14 @@
+## 10.2.1 - 2026-03-23
+* docs: update AuthGenerateTokenRequest field documentation
+* Clarify the purpose of username and password fields in AuthGenerateTokenRequest
+* to better reflect their actual usage as API credential client ID and secret
+* rather than user credentials.
+* Key changes:
+* Update username field documentation to indicate it represents API credential client ID
+* Update password field documentation to indicate it represents API credential client secret
+* Clarify builder method documentation for both fields
+* 🌿 Generated with Fern
+
 ## 10.2.0 - 2026-03-17
 * The SDK now supports MEDITECH as a new FHIR provider option. Use `Provider.MEDITECH` to configure MEDITECH provider integrations.
 
diff --git a/reference.md b/reference.md
index 944c1a1..77a8f53 100644
--- a/reference.md
+++ b/reference.md
@@ -1236,7 +1236,7 @@ client.authtoken().auth().generateToken(
 <dl>
 <dd>
 
-**username:** `String` — The user's username or email
+**username:** `String` — The API credential client ID
     
 </dd>
 </dl>
@@ -1244,7 +1244,7 @@ client.authtoken().auth().generateToken(
 <dl>
 <dd>
 
-**password:** `String` — The user's password
+**password:** `String` — The API credential client secret
     
 </dd>
 </dl>
diff --git a/src/main/java/com/phenoml/api/core/ClientOptions.java b/src/main/java/com/phenoml/api/core/ClientOptions.java
index 7741a40..16535ea 100644
--- a/src/main/java/com/phenoml/api/core/ClientOptions.java
+++ b/src/main/java/com/phenoml/api/core/ClientOptions.java
@@ -32,10 +32,10 @@ private ClientOptions(
         this.headers.putAll(headers);
         this.headers.putAll(new HashMap<String, String>() {
             {
-                put("User-Agent", "com.phenoml.maven:phenoml-java-sdk/10.2.0");
+                put("User-Agent", "com.phenoml.maven:phenoml-java-sdk/10.2.1");
                 put("X-Fern-Language", "JAVA");
                 put("X-Fern-SDK-Name", "com.phenoml.fern:api-sdk");
-                put("X-Fern-SDK-Version", "10.2.0");
+                put("X-Fern-SDK-Version", "10.2.1");
             }
         });
         this.headerSuppliers = headerSuppliers;
diff --git a/src/main/java/com/phenoml/api/resources/authtoken/auth/requests/AuthGenerateTokenRequest.java b/src/main/java/com/phenoml/api/resources/authtoken/auth/requests/AuthGenerateTokenRequest.java
index 3220962..7ee23fa 100644
--- a/src/main/java/com/phenoml/api/resources/authtoken/auth/requests/AuthGenerateTokenRequest.java
+++ b/src/main/java/com/phenoml/api/resources/authtoken/auth/requests/AuthGenerateTokenRequest.java
@@ -32,7 +32,7 @@ private AuthGenerateTokenRequest(String username, String password, Map<String, O
     }
 
     /**
-     * @return The user's username or email
+     * @return The API credential client ID
      */
     @JsonProperty("username")
     public String getUsername() {
@@ -40,7 +40,7 @@ public String getUsername() {
     }
 
     /**
-     * @return The user's password
+     * @return The API credential client secret
      */
     @JsonProperty("password")
     public String getPassword() {
@@ -78,7 +78,7 @@ public static UsernameStage builder() {
 
     public interface UsernameStage {
         /**
-         * <p>The user's username or email</p>
+         * <p>The API credential client ID</p>
          */
         PasswordStage username(@NotNull String username);
 
@@ -87,7 +87,7 @@ public interface UsernameStage {
 
     public interface PasswordStage {
         /**
-         * <p>The user's password</p>
+         * <p>The API credential client secret</p>
          */
         _FinalStage password(@NotNull String password);
     }
@@ -115,8 +115,8 @@ public Builder from(AuthGenerateTokenRequest other) {
         }
 
         /**
-         * <p>The user's username or email</p>
-         * <p>The user's username or email</p>
+         * <p>The API credential client ID</p>
+         * <p>The API credential client ID</p>
          * @return Reference to {@code this} so that method calls can be chained together.
          */
         @java.lang.Override
@@ -127,8 +127,8 @@ public PasswordStage username(@NotNull String username) {
         }
 
         /**
-         * <p>The user's password</p>
-         * <p>The user's password</p>
+         * <p>The API credential client secret</p>
+         * <p>The API credential client secret</p>
          * @return Reference to {@code this} so that method calls can be chained together.
          */
         @java.lang.Override