diff --git a/codex-rs/Cargo.lock b/codex-rs/Cargo.lock
index 188336720f..cea35cf0a9 100644
--- a/codex-rs/Cargo.lock
+++ b/codex-rs/Cargo.lock
@@ -1601,7 +1601,6 @@ name = "codex-auth"
 version = "0.0.0"
 dependencies = [
  "base64 0.22.1",
- "chrono",
  "codex-api",
  "codex-app-server-protocol",
  "http 1.4.0",
diff --git a/codex-rs/codex-auth/Cargo.toml b/codex-rs/codex-auth/Cargo.toml
index be7265029f..f28026a957 100644
--- a/codex-rs/codex-auth/Cargo.toml
+++ b/codex-rs/codex-auth/Cargo.toml
@@ -9,7 +9,6 @@ workspace = true
 
 [dependencies]
 base64 = { workspace = true }
-chrono = { workspace = true, features = ["serde"] }
 codex-api = { workspace = true }
 codex-app-server-protocol = { workspace = true }
 http = { workspace = true }
diff --git a/codex-rs/codex-auth/src/provider.rs b/codex-rs/codex-auth/src/provider.rs
index c1b25529bd..7f2135991c 100644
--- a/codex-rs/codex-auth/src/provider.rs
+++ b/codex-rs/codex-auth/src/provider.rs
@@ -27,6 +27,7 @@ pub const OLLAMA_CHAT_PROVIDER_REMOVED_ERROR: &str = "`ollama-chat` is no longer
 
 #[derive(Debug, Clone, Copy, Default, PartialEq, Eq, Serialize, JsonSchema)]
 #[serde(rename_all = "lowercase")]
+#[schemars(rename = "WireApi")]
 pub enum WireApi {
     #[default]
     Responses,
@@ -57,6 +58,7 @@ impl<'de> Deserialize<'de> for WireApi {
 
 #[derive(Debug, Clone, Deserialize, Serialize, PartialEq, JsonSchema)]
 #[schemars(deny_unknown_fields)]
+#[schemars(rename = "ModelProviderInfo")]
 pub struct ModelProviderInfo {
     pub name: String,
     pub base_url: Option<String>,