diff --git a/contrib/test.sh b/contrib/test.sh
index d5da48ed..92554052 100755
--- a/contrib/test.sh
+++ b/contrib/test.sh
@@ -10,8 +10,6 @@ fi
 
 # Pin dependencies as required if we are using MSRV toolchain.
 if cargo --version | grep "1\.41"; then
-    # can be removed with elementsd 0.8.0
-    cargo update -p zip --precise 0.5.6
     # 1.0.157 uses syn 2.0 which requires edition 2018
     cargo update -p serde --precise 1.0.156
     # 1.0.108 uses `matches!` macro so does not work with Rust 1.41.1, bad `syn` no biscuit.
diff --git a/elementsd-tests/Cargo.toml b/elementsd-tests/Cargo.toml
index 956b246d..ebba4fec 100644
--- a/elementsd-tests/Cargo.toml
+++ b/elementsd-tests/Cargo.toml
@@ -8,7 +8,8 @@ edition = "2018"
 
 [dependencies]
 base64 = "0.13.0"
+bitcoin30 = { package = "bitcoin", version = "0.30" }
 elements = {path = "../"}
-elementsd = "0.6.0"
+elementsd = "0.8.0"
 rand = "0.8"
 
diff --git a/elementsd-tests/src/pset.rs b/elementsd-tests/src/pset.rs
index 1d484262..29ad631a 100644
--- a/elementsd-tests/src/pset.rs
+++ b/elementsd-tests/src/pset.rs
@@ -6,7 +6,7 @@ extern crate rand;
 
 use crate::{setup, Call};
 
-use elements::bitcoin::{self, Address, Amount};
+use bitcoin30::{self, Address, Amount};
 use elements::bitcoin::hashes::hex::ToHex;
 use elements::bitcoin::hashes::Hash;
 use elements::encode::{deserialize, serialize};
@@ -60,7 +60,7 @@ fn tx_issuance() {
     let value = elementsd.call(
             "createpsbt",
             &[
-                json!([{ "txid": prevout.txid, "vout": prevout.vout, "issuance_amount": 1000, "issuance_tokens": 1}]),
+                json!([{ "txid": prevout.txid.to_string(), "vout": prevout.vout, "issuance_amount": 1000, "issuance_tokens": 1}]),
                 json!([
                     {address_asset: "1000", "asset": asset_id.to_string(), "blinder_index": 0},
                     {address_reissuance: "1", "asset": reissuance_id.to_string(), "blinder_index": 0},
@@ -87,23 +87,25 @@ fn tx_issuance() {
 fn tx_pegin() {
     let (elementsd, bitcoind) = setup(true);
     let bitcoind = bitcoind.unwrap();
-    let btc_addr = bitcoind.client.get_new_address(None, None).unwrap();
+    let btc_addr = bitcoind.client.get_new_address(None, None).unwrap()
+        .assume_checked();
     let address_lbtc = elementsd.get_new_address();
     bitcoind.client.generate_to_address(101, &btc_addr).unwrap();
     let (pegin_address, claim_script) = elementsd.get_pegin_address();
-    let address = Address::from_str(&pegin_address).unwrap();
+    let address = Address::from_str(&pegin_address).unwrap()
+        .assume_checked();
     let amount = Amount::from_sat(100_000_000);
     let txid = bitcoind
         .client
         .send_to_address(&address, amount, None, None, None, None, None, None)
         .unwrap();
     let tx = bitcoind.client.get_raw_transaction(&txid, None).unwrap();
-    let tx_bytes = serialize(&tx);
+    let tx_bytes = bitcoin30::consensus::serialize(&tx);
     let vout = tx
         .output
         .iter()
         .position(|o| {
-            let addr = Address::from_script(&o.script_pubkey, bitcoin::Network::Regtest);
+            let addr = Address::from_script(&o.script_pubkey, bitcoin30::Network::Regtest);
             addr.unwrap().to_string() == pegin_address
         })
         .unwrap();
diff --git a/src/lib.rs b/src/lib.rs
index be35ef01..c0be1830 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -25,12 +25,16 @@
 #![deny(unused_mut)]
 #![deny(missing_docs)]
 
+/// Re-export of bitcoin crate
 pub extern crate bitcoin;
 #[macro_use]
 extern crate bitcoin_hashes as just_imported_for_the_macros;
-extern crate slip21;
+/// Re-export of slip21 crate
+pub extern crate slip21;
+/// Re-export of secp256k1-zkp crate
 pub extern crate secp256k1_zkp;
-#[cfg(feature = "serde")] #[macro_use] extern crate actual_serde as serde;
+/// Re-export of serde crate
+#[cfg(feature = "serde")] #[macro_use] pub extern crate actual_serde as serde;
 #[cfg(all(test, feature = "serde"))] extern crate serde_test;
 
 #[cfg(test)] extern crate rand;
diff --git a/src/transaction.rs b/src/transaction.rs
index 51262384..487aff51 100644
--- a/src/transaction.rs
+++ b/src/transaction.rs
@@ -521,6 +521,9 @@ impl Decodable for TxIn {
         }
         if has_issuance {
             issuance = AssetIssuance::consensus_decode(&mut d)?;
+            if issuance.is_null() {
+                return Err(encode::Error::ParseFailed("superfluous asset issuance"));
+            }
         } else {
             issuance = AssetIssuance::default();
         }
@@ -2299,4 +2302,14 @@ mod tests {
         ");
         assert!(tx.input[0].previous_output.is_null());
     }
+
+    #[test]
+    fn superfluous_asset_issuance() {
+        let tx = Vec::<u8>::from_hex("1ae80068000109fee1000000000000000000000000000000000000000000000000000000000000005acf37f60000c7280028a7000000006e000000010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010115190000b9bfb80000000100000000d8d8d8d8d8d8d8d8d8d8d8d8d8d80000000000b8bfb8").unwrap();
+        if let encode::Error::ParseFailed("superfluous asset issuance") = Transaction::consensus_decode(&tx[..]).unwrap_err() {
+            // ok. FIXME replace this with matches! when we move to 1.48.0
+        } else {
+            panic!("Incorrect error for bad transaction");
+        }
+    }
 }