diff --git a/Cargo.lock b/Cargo.lock
index f36b92a..e5e8940 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -522,7 +522,7 @@ dependencies = [
 
 [[package]]
 name = "textsender_models"
-version = "0.3.3"
+version = "0.3.4"
 dependencies = [
  "const_format",
  "dotenvy",
diff --git a/Cargo.toml b/Cargo.toml
index b25c08c..7b11464 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "textsender_models"
-version = "0.3.3"
+version = "0.3.4"
 edition = "2024"
 rust-version = "1.95"
 description = "Models used for the textsender project"
@@ -15,4 +15,11 @@ const_format = { version = "0.2.36" }
 josekit = { version = "0.10.3" }
 utoipa = { version = "5.4.0", features = ["uuid", "time"] }
 
+[features]
+default = ["full"]
+full = ["user", "message", "contact"]
+user = []
+message = []
+contact = []
+
 [dev-dependencies]