diff --git a/src/lib.rs b/src/lib.rs
index 9bf7f35..6969931 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -20,7 +20,7 @@ pub mod types;
 pub mod utils;
 /// The maximum number of keys (inclusive) to derive when attempting to decrypt
 /// a note.
-pub const MAX_KEY: usize = 3;
+pub const MAX_KEY: usize = 8;
 
 /// The maximum allocated buffer for rkyv serialization.
 pub const MAX_LEN: usize = rusk_abi::ARGBUF_LEN;