diff --git a/dispatch/Cargo.toml b/dispatch/Cargo.toml
index 131cbff..e045dba 100644
--- a/dispatch/Cargo.toml
+++ b/dispatch/Cargo.toml
@@ -19,6 +19,10 @@ trussed-core.workspace = true
 [features]
 default = []
 std = ["delog/std"]
+mldsa44 = []
+mldsa65 = []
+mldsa87 = []
+
 
 log-all = []
 log-none = []
diff --git a/dispatch/src/types.rs b/dispatch/src/types.rs
index a7fa6c7..bc3fae3 100644
--- a/dispatch/src/types.rs
+++ b/dispatch/src/types.rs
@@ -1,7 +1,16 @@
 use ctaphid_app::{Command, Error};
 use heapless_bytes::Bytes;
 
-pub const MESSAGE_SIZE: usize = 7609;
+// TODO: update ML-DSA to minimum necessary sizes
+pub const MESSAGE_SIZE: usize = if cfg!(feature = "mldsa87") {
+    20000
+} else if cfg!(feature = "mldsa65") {
+    15000
+} else if cfg!(feature = "mldsa44") {
+    10000
+} else {
+    7609
+};
 
 pub type Message = Bytes<MESSAGE_SIZE>;