diff --git a/core/src/actor.rs b/core/src/actor.rs
index 596b4992..828daef0 100644
--- a/core/src/actor.rs
+++ b/core/src/actor.rs
@@ -357,7 +357,7 @@ mod tests {
         let mut tx_handler = create_invalid_mock_tx_handler(actor);
 
         let prev_tx: Transaction = Transaction {
-            version: Version::TWO,
+            version: Version(3),
             lock_time: bitcoin::absolute::LockTime::Blocks(Height::ZERO),
             input: vec![],
             output: tx_handler.prevouts.clone(),
@@ -390,7 +390,7 @@ mod tests {
         }];
 
         let tx = Transaction {
-            version: Version::TWO,
+            version: Version(3),
             lock_time: bitcoin::absolute::LockTime::Blocks(Height::ZERO),
             input: vec![],
             output: vec![TxOut {
diff --git a/core/src/builder/transaction.rs b/core/src/builder/transaction.rs
index e4ea9484..15aee747 100644
--- a/core/src/builder/transaction.rs
+++ b/core/src/builder/transaction.rs
@@ -444,7 +444,7 @@ pub fn create_operator_takes_tx(
 
 pub fn create_btc_tx(tx_ins: Vec<TxIn>, tx_outs: Vec<TxOut>) -> bitcoin::Transaction {
     bitcoin::Transaction {
-        version: bitcoin::transaction::Version(2),
+        version: bitcoin::transaction::Version(3),
         lock_time: absolute::LockTime::from_consensus(0),
         input: tx_ins,
         output: tx_outs,
diff --git a/core/tests/musig2.rs b/core/tests/musig2.rs
index e39a6e36..395ee903 100644
--- a/core/tests/musig2.rs
+++ b/core/tests/musig2.rs
@@ -149,6 +149,7 @@ async fn key_spend() {
         &musig_agg_xonly_pubkey_wrapped,
     )
     .unwrap();
+    rpc.mine_blocks(1).await.unwrap();
 
     tx_details.tx.input[0].witness.push(final_signature);
     rpc.client
@@ -246,6 +247,7 @@ async fn key_spend_with_script() {
         &musig_agg_xonly_pubkey_wrapped,
     )
     .unwrap();
+    rpc.mine_blocks(1).await.unwrap();
 
     tx_details.tx.input[0].witness.push(final_signature);
     rpc.client
@@ -350,6 +352,7 @@ async fn script_spend() {
     let schnorr_sig = secp256k1::schnorr::Signature::from_slice(&final_signature).unwrap();
     let witness_elements = vec![schnorr_sig.as_ref()];
     handle_taproot_witness_new(&mut tx_details, &witness_elements, 0, Some(0)).unwrap();
+    rpc.mine_blocks(1).await.unwrap();
 
     rpc.client
         .send_raw_transaction(&tx_details.tx)
diff --git a/core/tests/taproot.rs b/core/tests/taproot.rs
index e9153180..987ecc11 100644
--- a/core/tests/taproot.rs
+++ b/core/tests/taproot.rs
@@ -81,6 +81,7 @@ async fn create_address_and_transaction_then_sign_transaction() {
         .sign_taproot_script_spend_tx_new_tweaked(&mut tx_details, 0, 0)
         .unwrap();
     handle_taproot_witness_new(&mut tx_details, &[sig.as_ref()], 0, Some(0)).unwrap();
+    rpc.mine_blocks(1).await.unwrap();
 
     // New transaction should be OK to send.
     rpc.client