diff --git a/core/src/main/java/com/bloxbean/cardano/yaci/core/model/ProtocolParamUpdate.java b/core/src/main/java/com/bloxbean/cardano/yaci/core/model/ProtocolParamUpdate.java
index f795b6d..dd71d86 100644
--- a/core/src/main/java/com/bloxbean/cardano/yaci/core/model/ProtocolParamUpdate.java
+++ b/core/src/main/java/com/bloxbean/cardano/yaci/core/model/ProtocolParamUpdate.java
@@ -74,5 +74,5 @@ public class ProtocolParamUpdate {
     private BigInteger govActionDeposit; //30
     private BigInteger drepDeposit; //31
     private Integer drepActivity; //32
-    private Integer minFeeRefScriptCostPerByte; //33
+    private BigDecimal minFeeRefScriptCostPerByte; //33
 }
diff --git a/core/src/main/java/com/bloxbean/cardano/yaci/core/model/serializers/UpdateSerializer.java b/core/src/main/java/com/bloxbean/cardano/yaci/core/model/serializers/UpdateSerializer.java
index cd44638..a19b0ae 100644
--- a/core/src/main/java/com/bloxbean/cardano/yaci/core/model/serializers/UpdateSerializer.java
+++ b/core/src/main/java/com/bloxbean/cardano/yaci/core/model/serializers/UpdateSerializer.java
@@ -208,7 +208,7 @@ public ProtocolParamUpdate getProtocolParams(Map genesisProtocolParamsMap) {
         Integer drepInactivityPeriod = itemDI != null ? toInt(itemDI) : null;
 
         itemDI = genesisProtocolParamsMap.get(new UnsignedInteger(33));
-        Integer minFeeRefScriptCostPerByte = itemDI != null ? toInt(itemDI) : null;
+        BigDecimal minFeeRefScriptCostPerByte = itemDI != null ? toRationalNumber(itemDI) : null;
 
         ProtocolParamUpdate protocolParamUpdate = ProtocolParamUpdate.builder()
                 .minFeeA(minFeeA)
diff --git a/core/src/main/java/com/bloxbean/cardano/yaci/core/protocol/localstate/queries/CurrentProtocolParamsQuery.java b/core/src/main/java/com/bloxbean/cardano/yaci/core/protocol/localstate/queries/CurrentProtocolParamsQuery.java
index 8cf129b..a752fcd 100644
--- a/core/src/main/java/com/bloxbean/cardano/yaci/core/protocol/localstate/queries/CurrentProtocolParamsQuery.java
+++ b/core/src/main/java/com/bloxbean/cardano/yaci/core/protocol/localstate/queries/CurrentProtocolParamsQuery.java
@@ -422,10 +422,10 @@ public CurrentProtocolParamQueryResult deserializeResult(DataItem[] di) {
         itemDI = paramsDIList.get(29);
         Integer drepInactivityPeriod = itemDI != null ? toInt(itemDI) : null;
 
-        Integer minFeeRefScriptCostPerByte = null; //TODO -- Remove if condition once this is available in the node release
+        BigDecimal minFeeRefScriptCostPerByte = null; //TODO -- Remove if condition once this is available in the node release
         if (paramsDIList.size() > 30) {
             itemDI = paramsDIList.get(30);
-            minFeeRefScriptCostPerByte = itemDI != null ? toInt(itemDI) : null;
+            minFeeRefScriptCostPerByte = itemDI != null ? toRationalNumber(itemDI) : null;
         }
 
         ProtocolParamUpdate protocolParams = ProtocolParamUpdate.builder()