diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index d9f7840..9e7b75f 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 2025-05-09 "IconikFieldType Update" - version 1.13.0
+
+### Fixed
+- Updated `IconikFieldType` enum with the exact field types supported by the Iconik API
+- Added missing `string_exact` type and removed unsupported types
+
+### Technical Details
+This release updates the `IconikFieldType` enum to match the exact field types accepted by the Iconik API. The update ensures accurate field type validation when creating or updating metadata fields, preventing errors with field type validation.
+
 ## 2025-05-09 "ViewField Label Bugfix" - version 1.12.1
 
 ### Fixed
diff --git a/pythonik/models/metadata/fields.py b/pythonik/models/metadata/fields.py
index a8c8a6d..e32a029 100644
--- a/pythonik/models/metadata/fields.py
+++ b/pythonik/models/metadata/fields.py
@@ -4,30 +4,36 @@
 from enum import Enum
 from pydantic import BaseModel, HttpUrl
 
+
 class IconikFieldType(str, Enum):
-    """Known Iconik metadata field types based on documentation.
-    Actual values sent to/received from API.
+    """Iconik metadata field types as confirmed by API error messages.
+    These are the exact values accepted by the Iconik API.
     """
-    STRING = "string"        # General short text
-    TEXT = "text"            # Longer text (potentially multi-line in UI but distinct type)
-    TEXT_AREA = "text_area"  # Explicitly for larger amounts of text data
+
     INTEGER = "integer"
     FLOAT = "float"
-    BOOLEAN = "boolean"      # For Yes/No fields
+    BOOLEAN = "boolean"  # For Yes/No fields
+    STRING = "string"  # General short text
+    STRING_EXACT = "string_exact"  # Case-sensitive string matching
+    TEXT = "text"  # Longer text (potentially multi-line in UI)
     DATE = "date"
-    DATETIME = "datetime"    # For Date Time fields
-    DROPDOWN = "drop_down"   # For fields with predefined options
-    EMAIL = "email"
+    DATETIME = "datetime"  # For Date Time fields
     TAG_CLOUD = "tag_cloud"  # For free-form tag collections
     URL = "url"
+    DROPDOWN = "drop_down"  # For fields with predefined options
+    EMAIL = "email"
+
 
 class FieldOption(BaseModel):
     """Represents an option for a metadata field (e.g., for dropdowns)."""
+
     label: Optional[str] = None
     value: Optional[str] = None
 
+
 class _FieldConfigurable(BaseModel):
     """Base model for common configurable attributes of metadata fields."""
+
     label: Optional[str] = None
     field_type: Optional[IconikFieldType] = None
     description: Optional[str] = None
@@ -47,22 +53,28 @@ class _FieldConfigurable(BaseModel):
     external_id: Optional[str] = None
     source_url: Optional[HttpUrl] = None
 
+
 class FieldCreate(_FieldConfigurable):
     """Data Transfer Object for creating a new metadata field."""
+
     name: str
     label: str
     field_type: IconikFieldType
 
+
 class FieldUpdate(_FieldConfigurable):
     """
     Data Transfer Object for updating an existing metadata field.
     All fields are optional to support partial updates.
     'name' is specified in the URL path for updates, not in the body.
     """
+
     pass
 
+
 class Field(_FieldConfigurable):
     """Represents a metadata field as returned by the API."""
+
     id: str
     name: str
     label: str
@@ -72,6 +84,7 @@ class Field(_FieldConfigurable):
     date_modified: Optional[datetime] = None
     mapped_field_name: Optional[str] = None
 
+
 class FieldResponse(BaseModel):
     auto_set: bool
     date_created: datetime