diff --git a/afl/Cargo.toml b/afl/Cargo.toml
index d6ca4c4758..71775a583b 100644
--- a/afl/Cargo.toml
+++ b/afl/Cargo.toml
@@ -14,9 +14,10 @@ default = ["std"]
 std = []
 
 [dependencies]
-hashbrown = "0.9" # A faster hashmap, nostd compatible
+hashbrown =  { version = "0.9", features = ["serde"] } # A faster hashmap, nostd compatible
 libc = "0.2" # For (*nix) libc
 num = "*"
 xxhash-rust = { version = "0.8.0-beta.5", features = ["xxh3"] } # xxh3 hashing for rust
 serde = { version = "1.0", default-features = false, features = ["alloc"] } # serialization lib
+serde_traitobject =  { version = "0.2.7" } # trait obj serialization lib
 postcard = "0.5.1" # no_std compatible serde serialization fromat
\ No newline at end of file
diff --git a/afl/src/corpus/testcase.rs b/afl/src/corpus/testcase.rs
index 37940f058c..05f91c0bde 100644
--- a/afl/src/corpus/testcase.rs
+++ b/afl/src/corpus/testcase.rs
@@ -1,12 +1,13 @@
 use alloc::boxed::Box;
 use alloc::rc::Rc;
 use alloc::string::String;
+use core::any::Any;
 use core::cell::RefCell;
 use core::convert::Into;
 use core::default::Default;
 use core::option::Option;
 use hashbrown::HashMap;
-use serde::{Deserialize, Serialize};
+use serde_traitobject::{Deserialize, Serialize};
 
 use crate::inputs::Input;
 use crate::AflError;
@@ -17,7 +18,7 @@ use crate::AflError;
 
 // TODO: Give example
 /// Metadata for a testcase
-pub trait TestcaseMetadata {
+pub trait TestcaseMetadata: Any + Serialize + Deserialize<'static> {
     /// The name of this metadata - used to find it in the list of avaliable metadatas
     fn name(&self) -> &'static str;
 }
diff --git a/afl/src/feedbacks/mod.rs b/afl/src/feedbacks/mod.rs
index 2481020891..91c94f897a 100644
--- a/afl/src/feedbacks/mod.rs
+++ b/afl/src/feedbacks/mod.rs
@@ -4,6 +4,7 @@ use alloc::vec::Vec;
 use core::cell::RefCell;
 use core::marker::PhantomData;
 use num::Integer;
+use serde::{Deserialize, Serialize};
 
 use crate::corpus::{Testcase, TestcaseMetadata};
 use crate::inputs::Input;
@@ -165,6 +166,7 @@ where
     }
 }
 
+#[derive(Serialize, Deserialize)]
 pub struct MapNoveltiesMetadata {
     novelties: Vec<usize>,
 }