diff --git a/.gitignore b/.gitignore
index dc480d8..fb7c376 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,4 +7,5 @@ test_data_item*
 node_modules
 dist
 /res/gen_bundles/bundle*
-bundles.js
\ No newline at end of file
+bundles.js
+.idea
\ No newline at end of file
diff --git a/src/deep_hash.rs b/src/deep_hash.rs
index f2c9719..492978d 100644
--- a/src/deep_hash.rs
+++ b/src/deep_hash.rs
@@ -12,7 +12,7 @@ use futures::{Stream, TryStream, TryStreamExt};
 
 pub enum DeepHashChunk<'a> {
     Chunk(Bytes),
-    Stream(&'a mut Pin<Box<dyn Stream<Item = anyhow::Result<Bytes>>>>),
+    Stream(&'a mut Pin<Box<dyn Stream<Item = anyhow::Result<Bytes>> + Send>>),
     Chunks(Vec<DeepHashChunk<'a>>),
 }
 
@@ -60,7 +60,7 @@ pub async fn deep_hash(chunk: DeepHashChunk<'_>) -> Result<Bytes, BundlrError> {
     }
 }
 
-#[async_recursion(?Send)]
+#[async_recursion]
 pub async fn deep_hash_chunks(
     chunks: &mut Vec<DeepHashChunk<'_>>,
     acc: Bytes,
diff --git a/src/transaction/bundlr.rs b/src/transaction/bundlr.rs
index 4a3b9ed..5ba90d0 100644
--- a/src/transaction/bundlr.rs
+++ b/src/transaction/bundlr.rs
@@ -18,7 +18,7 @@ use crate::utils::read_offset;
 enum Data {
     None,
     Bytes(Vec<u8>),
-    Stream(Pin<Box<dyn Stream<Item = anyhow::Result<Bytes>>>>),
+    Stream(Pin<Box<dyn Stream<Item = anyhow::Result<Bytes>> + Send>>),
 }
 
 pub struct BundlrTx {
@@ -281,12 +281,9 @@ impl BundlrTx {
     pub async fn sign(&mut self, signer: &dyn Signer) -> Result<(), BundlrError> {
         self.signature_type = signer.sig_type();
         self.owner = signer.pub_key().to_vec();
-
         let message = self.get_message().await?;
-
         let sig = signer.sign(message)?;
         self.signature = sig.to_vec();
-
         Ok(())
     }
 
@@ -321,6 +318,7 @@ mod tests {
             tokio_test::block_on($e)
         };
     }
+
     #[tokio::test]
     async fn test_create_sign_verify_load_ed25519() {
         let path = "./res/test_bundles/test_data_item_ed25519";