diff --git a/rskj-core/src/test/java/co/rsk/peg/bitcoin/BitcoinUtilsTest.java b/rskj-core/src/test/java/co/rsk/peg/bitcoin/BitcoinUtilsTest.java
index 69c03d88daf..5740f641af0 100644
--- a/rskj-core/src/test/java/co/rsk/peg/bitcoin/BitcoinUtilsTest.java
+++ b/rskj-core/src/test/java/co/rsk/peg/bitcoin/BitcoinUtilsTest.java
@@ -346,7 +346,7 @@ void removeSignaturesFromTransaction_whenTransactionInputsDoNotHaveP2shMultiSigI
     @Test
     void removeSignaturesFromTransaction_whenNotAllTransactionInputsHaveP2shMultiSigInputScript_shouldThrowIllegalArgumentException() {
         // arrange
-        Federation federation = new P2shErpFederationBuilder().build();
+        Federation federation = P2shErpFederationBuilder.builder().build();
         Script p2shMultiSigScriptSig = federation.getP2SHScript().createEmptyInputScript(null, federation.getRedeemScript());
         BtcECKey pubKey = new BtcECKey();
         Script p2pkhScriptSig = ScriptBuilder.createInputScript(null, pubKey);
@@ -364,7 +364,7 @@ void removeSignaturesFromTransaction_whenNotAllTransactionInputsHaveP2shMultiSig
     @Test
     void removeSignaturesFromTransaction_whenTransactionIsLegacyAndInputsHaveP2shMultiSigInputScript_shouldRemoveSignatures() {
         // arrange
-        Federation federation = new P2shErpFederationBuilder().build();
+        Federation federation = P2shErpFederationBuilder.builder().build();
         Script scriptSig = federation.getP2SHScript().createEmptyInputScript(null, federation.getRedeemScript());
 
         BtcTransaction transaction = new BtcTransaction(btcMainnetParams);