diff --git a/tests/auth.rs b/tests/auth.rs
index 35007f1..6266aa3 100644
--- a/tests/auth.rs
+++ b/tests/auth.rs
@@ -2,6 +2,8 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+use std::str::FromStr;
+use chrono::DateTime;
 use chorus::types::{LoginSchema, RegisterSchema};
 #[cfg(target_arch = "wasm32")]
 use wasm_bindgen_test::*;
@@ -16,7 +18,7 @@ async fn test_registration() {
     let mut bundle = common::setup().await;
     let reg = RegisterSchema {
         username: "Hiiii".into(),
-        date_of_birth: Some("2000-01-01".to_string()),
+        date_of_birth: Some(DateTime::from_str("2000-01-01").unwrap()),
         consent: true,
         ..Default::default()
     };
@@ -32,7 +34,7 @@ async fn test_login() {
         username: "Hiiii".into(),
         email: Some("testuser1@integrationtesting.xyz".into()),
         password: Some("Correct-Horse-Battery-Staple1".into()),
-        date_of_birth: Some("2000-01-01".to_string()),
+        date_of_birth: Some(DateTime::from_str("2000-01-01").unwrap()),
         consent: true,
         ..Default::default()
     };
@@ -54,7 +56,7 @@ async fn test_wrong_login() {
         username: "Hiiii".into(),
         email: Some("testuser2@integrationtesting.xyz".into()),
         password: Some("Correct-Horse-Battery-Staple1".into()),
-        date_of_birth: Some("2000-01-01".to_string()),
+        date_of_birth: Some(DateTime::from_str("2000-01-01").unwrap()),
         consent: true,
         ..Default::default()
     };
diff --git a/tests/common/mod.rs b/tests/common/mod.rs
index a98667c..4abedd5 100644
--- a/tests/common/mod.rs
+++ b/tests/common/mod.rs
@@ -2,6 +2,8 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+use std::str::FromStr;
+use chrono::DateTime;
 use chorus::gateway::Gateway;
 use chorus::types::IntoShared;
 use chorus::{
@@ -30,7 +32,7 @@ impl TestBundle {
         let register_schema = RegisterSchema {
             username: username.to_string(),
             consent: true,
-            date_of_birth: Some("2000-01-01".to_string()),
+            date_of_birth: Some(DateTime::from_str("2000-01-01").unwrap()),
             ..Default::default()
         };
         self.instance
@@ -60,7 +62,7 @@ pub(crate) async fn setup() -> TestBundle {
     let reg = RegisterSchema {
         username: "integrationtestuser".into(),
         consent: true,
-        date_of_birth: Some("2000-01-01".to_string()),
+        date_of_birth: Some(DateTime::from_str("2000-01-01").unwrap()),
         ..Default::default()
     };
     let guild_create_schema = GuildCreateSchema {