diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f357eb..425e17d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.0.4] - 2026-06-XX
+
+### Added
+
+### Changed
+
+### Fixed
+- Include correct JMAP capabilities in `using`.
+
 ## [1.0.3] - 2026-06-15
 
 ### Added
@@ -12,10 +21,6 @@ All notable changes to this project will be documented in this file. This projec
 - Mailbox roles must be unique per archive (#8).
 - Google takeout: Decode MIME-encoded values in `X-Gmail-Labels` (#7).
 
-# Change Log
-
-All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
-
 ## [1.0.2] - 2026-06-11
 
 ### Added
diff --git a/src/jmap/request.rs b/src/jmap/request.rs
index 11dcca0..3d5ae08 100644
--- a/src/jmap/request.rs
+++ b/src/jmap/request.rs
@@ -18,7 +18,8 @@ pub const URN_CORE: &str = "urn:ietf:params:jmap:core";
 pub fn using_urn(method: &str) -> &'static str {
     let prefix = method.split('/').next().unwrap_or(method);
     match prefix {
-        "Mailbox" | "Email" | "Identity" => "urn:ietf:params:jmap:mail",
+        "Mailbox" | "Email" => "urn:ietf:params:jmap:mail",
+        "Identity" => "urn:ietf:params:jmap:submission",
         "SieveScript" => "urn:ietf:params:jmap:sieve",
         "AddressBook" | "ContactCard" => "urn:ietf:params:jmap:contacts",
         "Calendar" | "CalendarEvent" | "ParticipantIdentity" => "urn:ietf:params:jmap:calendars",
@@ -743,6 +744,7 @@ mod tests {
             using_urn("CalendarEvent/set"),
             "urn:ietf:params:jmap:calendars"
         );
+        assert_eq!(using_urn("Identity/get"), "urn:ietf:params:jmap:submission");
     }
 
     #[test]
diff --git a/src/types.rs b/src/types.rs
index 66649e1..82f8df9 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -66,9 +66,8 @@ impl ObjectType {
 
     pub fn capability_urn(self) -> &'static str {
         match self {
-            ObjectType::Mailbox | ObjectType::Email | ObjectType::Identity => {
-                "urn:ietf:params:jmap:mail"
-            }
+            ObjectType::Mailbox | ObjectType::Email => "urn:ietf:params:jmap:mail",
+            ObjectType::Identity => "urn:ietf:params:jmap:submission",
             ObjectType::SieveScript => "urn:ietf:params:jmap:sieve",
             ObjectType::AddressBook | ObjectType::ContactCard => "urn:ietf:params:jmap:contacts",
             ObjectType::Calendar | ObjectType::CalendarEvent | ObjectType::ParticipantIdentity => {
diff --git a/tests/seeder/seed.rs b/tests/seeder/seed.rs
index 93ae04c..d93af57 100644
--- a/tests/seeder/seed.rs
+++ b/tests/seeder/seed.rs
@@ -16,6 +16,7 @@ use super::jmap::Jmap;
 
 const CORE: &str = "urn:ietf:params:jmap:core";
 const MAIL: &str = "urn:ietf:params:jmap:mail";
+const SUBMISSION: &str = "urn:ietf:params:jmap:submission";
 const SIEVE: &str = "urn:ietf:params:jmap:sieve";
 const CONTACTS: &str = "urn:ietf:params:jmap:contacts";
 const CALENDARS: &str = "urn:ietf:params:jmap:calendars";
@@ -239,7 +240,7 @@ fn seed_sieve(jmap: &Jmap, account_id: &str, active: bool) -> SeedResult<()> {
 
 fn seed_identity(jmap: &Jmap, account_id: &str, account_email: &str) -> SeedResult<()> {
     jmap.set_create(
-        &[CORE, MAIL],
+        &[CORE, SUBMISSION],
         "Identity/set",
         account_id,
         json!({