diff --git a/test/integration/cltv.spec.ts b/test/integration/cltv.spec.ts
index 4b2eb66..c1a52de 100644
--- a/test/integration/cltv.spec.ts
+++ b/test/integration/cltv.spec.ts
@@ -250,7 +250,7 @@ describe('bitcoinjs-lib (transactions w/ CLTV)', () => {
       await regtestUtils.broadcast(tx.toHex()).catch(err => {
         assert.throws(() => {
           if (err) throw err;
-        }, /Error: non-final \(code 64\)/);
+        }, /Error: non-final/);
       });
     },
   );
diff --git a/test/integration/csv.spec.ts b/test/integration/csv.spec.ts
index 81b0943..9993d5c 100644
--- a/test/integration/csv.spec.ts
+++ b/test/integration/csv.spec.ts
@@ -219,7 +219,7 @@ describe('bitcoinjs-lib (transactions w/ CSV)', () => {
       await regtestUtils.broadcast(tx.toHex()).catch(err => {
         assert.throws(() => {
           if (err) throw err;
-        }, /Error: non-BIP68-final \(code 64\)/);
+        }, /Error: non-BIP68-final/);
       });
     },
   );