diff --git a/Cargo.lock b/Cargo.lock
index 4980297ff1..fcea1e2203 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5538,6 +5538,7 @@ dependencies = [
  "schemars 0.8.22",
  "serde",
  "serde_json",
+ "serde_with",
  "time",
  "tsify",
  "utoipa",
@@ -5694,7 +5695,6 @@ dependencies = [
  "criterion",
  "ff",
  "group",
- "lazy_static",
  "nym-contracts-common",
  "nym-pemstore",
  "rand 0.8.5",
diff --git a/nym-credential-proxy/nym-credential-proxy-requests/Cargo.toml b/nym-credential-proxy/nym-credential-proxy-requests/Cargo.toml
index 9aadebbe50..7897a1287e 100644
--- a/nym-credential-proxy/nym-credential-proxy-requests/Cargo.toml
+++ b/nym-credential-proxy/nym-credential-proxy-requests/Cargo.toml
@@ -16,6 +16,7 @@ schemars = { workspace = true, features = ["preserve_order", "uuid1"] }
 uuid = { workspace = true, features = ["serde"] }
 serde = { workspace = true, features = ["derive"] }
 serde_json.workspace = true
+serde_with = { workspace = true }
 time = { workspace = true, features = ["serde", "formatting", "parsing"] }
 tsify = { workspace = true, optional = true }
 reqwest = { workspace = true, features = ["json", "rustls-tls"] }
diff --git a/nym-credential-proxy/nym-credential-proxy-requests/src/api/v1/ticketbook/models.rs b/nym-credential-proxy/nym-credential-proxy-requests/src/api/v1/ticketbook/models.rs
index e0b6b6b892..3ed36ade31 100644
--- a/nym-credential-proxy/nym-credential-proxy-requests/src/api/v1/ticketbook/models.rs
+++ b/nym-credential-proxy/nym-credential-proxy-requests/src/api/v1/ticketbook/models.rs
@@ -9,6 +9,7 @@ use schemars::JsonSchema;
 use schemars::r#gen::SchemaGenerator;
 use schemars::schema::Schema;
 use serde::{Deserialize, Serialize};
+use serde_with::{DisplayFromStr, serde_as};
 use std::ops::{Deref, DerefMut};
 use time::{Date, OffsetDateTime};
 
@@ -264,12 +265,14 @@ pub struct WebhookTicketbookWalletSharesRequest {
     pub secret: String,
 }
 
+#[serde_as]
 #[derive(Default, Debug, Serialize, Deserialize, Clone)]
 #[cfg_attr(feature = "openapi", derive(utoipa::ToSchema, utoipa::IntoParams))]
 #[cfg(feature = "query-types")]
 #[serde(default, rename_all = "kebab-case")]
 pub struct TicketbookObtainParams {
     #[serde(default)]
+    #[serde_as(as = "DisplayFromStr")]
     pub skip_webhook: bool,
 
     #[serde(default)]
@@ -277,15 +280,19 @@ pub struct TicketbookObtainParams {
     pub global: GlobalDataParams,
 }
 
+#[serde_as]
 #[derive(Default, Debug, Serialize, Deserialize, Clone)]
 #[cfg_attr(feature = "openapi", derive(utoipa::ToSchema, utoipa::IntoParams))]
 #[cfg(feature = "query-types")]
 #[serde(default, rename_all = "kebab-case")]
 pub struct GlobalDataParams {
+    #[serde_as(as = "DisplayFromStr")]
     pub include_master_verification_key: bool,
 
+    #[serde_as(as = "DisplayFromStr")]
     pub include_coin_index_signatures: bool,
 
+    #[serde_as(as = "DisplayFromStr")]
     pub include_expiration_date_signatures: bool,
 }