diff --git a/examples/generate_image.rs b/examples/generate_image.rs
index 5343dac..221c40e 100644
--- a/examples/generate_image.rs
+++ b/examples/generate_image.rs
@@ -1,7 +1,7 @@
 use std::{error::Error, io::Cursor};
 
 use gemini_rs::prelude::{
-    GeminiClient, PredictImageRequest, PredictImageRequestParameters,
+    GeminiClient, PersonGeneration, PredictImageRequest, PredictImageRequestParameters,
     PredictImageRequestParametersOutputOptions, PredictImageRequestPrompt,
 };
 use image::{ImageFormat, ImageReader};
@@ -34,9 +34,13 @@ pub async fn main() -> Result<(), Box<dyn Error>> {
                 mime_type: Some("image/jpeg".to_string()),
                 compression_quality: Some(75),
             }),
+            person_generation: Some(PersonGeneration::AllowAll),
             ..Default::default()
         },
     };
+
+    println!("Request: {:#?}", serde_json::to_string(&request).unwrap());
+
     let mut result = gemini
         .predict_image(&request, "imagen-3.0-fast-generate-001")
         .await?;
diff --git a/src/types/predict_image.rs b/src/types/predict_image.rs
index 0197351..f0ebe20 100644
--- a/src/types/predict_image.rs
+++ b/src/types/predict_image.rs
@@ -91,7 +91,7 @@ pub struct PredictImageRequestParameters {
     /// Supported by the models `imagen-3.0-generate-001`, `imagen-3.0-fast-generate-001`, and
     /// `imagegeneration@006` only.
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub person_generation: Option<String>,
+    pub person_generation: Option<PersonGeneration>,
 
     /// Optional. The language code that corresponds to your text prompt language.
     /// The following values are supported:
@@ -111,14 +111,17 @@ pub struct PredictImageRequestParameters {
     pub language: Option<String>,
 
     /// Adds a filter level to safety filtering. The following values are supported:
-    ///  - `"block_most"`: Strongest filtering level, most strict blocking.
-    ///  - `"block_some"`: Block some problematic prompts and responses.
-    ///  - `"block_few"`: Reduces the number of requests blocked due to safety filters. May
-    ///    increase objectionable content generated by Imagen.
-    ///  - `"block_fewest"`: Block very few problematic prompts and responses. Access to this
-    ///    feature is restricted.
     ///
-    /// The default value is `"block_some"`.
+    /// - "block_low_and_above": Strongest filtering level, most strict blocking.
+    ///    Deprecated value: "block_most".
+    /// - "block_medium_and_above": Block some problematic prompts and responses.
+    ///    Deprecated value: "block_some".
+    /// - "block_only_high": Reduces the number of requests blocked due to safety filters. May
+    ///   increase objectionable content generated by Imagen. Deprecated value: "block_few".
+    /// - "block_none": Block very few problematic prompts and responses. Access to this feature
+    ///   is restricted. Previous field value: "block_fewest".
+    ///
+    /// The default value is "block_medium_and_above".
     ///
     /// Supported by the models `imagen-3.0-generate-001`, `imagen-3.0-fast-generate-001`, and
     /// `imagegeneration@006` only.
@@ -165,3 +168,11 @@ pub struct PredictImageResponsePrediction {
     pub bytes_base64_encoded: Vec<u8>,
     pub mime_type: String,
 }
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum PersonGeneration {
+    DontAllow,
+    AllowAdult,
+    AllowAll,
+}