diff --git a/.fern/metadata.json b/.fern/metadata.json
index 9357670..d324860 100644
--- a/.fern/metadata.json
+++ b/.fern/metadata.json
@@ -1,10 +1,10 @@
 {
-  "cliVersion": "4.32.2",
+  "cliVersion": "4.42.1",
   "generatorName": "fernapi/fern-python-sdk",
   "generatorVersion": "4.61.5",
   "generatorConfig": {
     "client_class_name": "PhenomlClient"
   },
-  "originGitCommit": "e3a7239a17a8ebeed78568e37a8bd984ce481838",
-  "sdkVersion": "9.2.0"
+  "originGitCommit": "529fd3587f1939a037d76bdad7d3c03614995ddc",
+  "sdkVersion": "9.2.1"
 }
\ No newline at end of file
diff --git a/changelog.md b/changelog.md
index 4be4b02..2a515ce 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,14 @@
+## 9.2.1 - 2026-03-23
+* docs: update parameter documentation for auth methods
+* Clarify that username and password parameters in authentication methods
+* represent API credential client ID and client secret respectively, rather
+* than user login credentials.
+* Key changes:
+* Update username parameter description from "The user's username or email" to "The API credential client ID"
+* Update password parameter description from "The user's password" to "The API credential client secret"
+* Apply changes consistently across both sync and async auth clients
+* 🌿 Generated with Fern
+
 ## 9.2.0 - 2026-03-17
 * The SDK now supports "meditech" as a FHIR provider option, enabling integration with Meditech healthcare systems.
 
diff --git a/pyproject.toml b/pyproject.toml
index 12dd5be..235b6af 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ dynamic = ["version"]
 
 [tool.poetry]
 name = "phenoml"
-version = "9.2.0"
+version = "9.2.1"
 description = ""
 readme = "README.md"
 authors = []
diff --git a/reference.md b/reference.md
index f935b42..b201280 100644
--- a/reference.md
+++ b/reference.md
@@ -1513,7 +1513,7 @@ client.authtoken.auth.generate_token(
 <dl>
 <dd>
 
-**username:** `str` — The user's username or email
+**username:** `str` — The API credential client ID
     
 </dd>
 </dl>
@@ -1521,7 +1521,7 @@ client.authtoken.auth.generate_token(
 <dl>
 <dd>
 
-**password:** `str` — The user's password
+**password:** `str` — The API credential client secret
     
 </dd>
 </dl>
diff --git a/src/phenoml/authtoken/auth/client.py b/src/phenoml/authtoken/auth/client.py
index 4a0f014..8f91b77 100644
--- a/src/phenoml/authtoken/auth/client.py
+++ b/src/phenoml/authtoken/auth/client.py
@@ -36,10 +36,10 @@ def generate_token(
         Parameters
         ----------
         username : str
-            The user's username or email
+            The API credential client ID
 
         password : str
-            The user's password
+            The API credential client secret
 
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
@@ -134,10 +134,10 @@ async def generate_token(
         Parameters
         ----------
         username : str
-            The user's username or email
+            The API credential client ID
 
         password : str
-            The user's password
+            The API credential client secret
 
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
diff --git a/src/phenoml/authtoken/auth/raw_client.py b/src/phenoml/authtoken/auth/raw_client.py
index b0f5e0f..b4afec8 100644
--- a/src/phenoml/authtoken/auth/raw_client.py
+++ b/src/phenoml/authtoken/auth/raw_client.py
@@ -31,10 +31,10 @@ def generate_token(
         Parameters
         ----------
         username : str
-            The user's username or email
+            The API credential client ID
 
         password : str
-            The user's password
+            The API credential client secret
 
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
@@ -203,10 +203,10 @@ async def generate_token(
         Parameters
         ----------
         username : str
-            The user's username or email
+            The API credential client ID
 
         password : str
-            The user's password
+            The API credential client secret
 
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
diff --git a/src/phenoml/core/client_wrapper.py b/src/phenoml/core/client_wrapper.py
index 72acd22..569c43c 100644
--- a/src/phenoml/core/client_wrapper.py
+++ b/src/phenoml/core/client_wrapper.py
@@ -27,12 +27,12 @@ def get_headers(self) -> typing.Dict[str, str]:
         import platform
 
         headers: typing.Dict[str, str] = {
-            "User-Agent": "phenoml/9.2.0",
+            "User-Agent": "phenoml/9.2.1",
             "X-Fern-Language": "Python",
             "X-Fern-Runtime": f"python/{platform.python_version()}",
             "X-Fern-Platform": f"{platform.system().lower()}/{platform.release()}",
             "X-Fern-SDK-Name": "phenoml",
-            "X-Fern-SDK-Version": "9.2.0",
+            "X-Fern-SDK-Version": "9.2.1",
             **(self.get_custom_headers() or {}),
         }
         token = self._get_token()