diff --git a/src/main/kotlin/com/okp4/processor/cosmos/topology.kt b/src/main/kotlin/com/okp4/processor/cosmos/topology.kt
index aa38fa6..7057875 100644
--- a/src/main/kotlin/com/okp4/processor/cosmos/topology.kt
+++ b/src/main/kotlin/com/okp4/processor/cosmos/topology.kt
@@ -1,6 +1,5 @@
 package com.okp4.processor.cosmos
 
-import cosmos.tx.v1beta1.TxOuterClass
 import org.apache.kafka.common.serialization.Serdes
 import org.apache.kafka.streams.KeyValue
 import org.apache.kafka.streams.StreamsBuilder
@@ -39,11 +38,15 @@ fun topology(props: Properties): Topology {
                 ).peek(
                     { _, block -> logger.debug("→ block ${block.header.height} (${block.data.txsCount} txs)") },
                     Named.`as`("log")
-                ).flatMapValues({ block ->
-                    block.data.txsList.map { tx ->
-                        TxOuterClass.Tx.parseFrom(tx).toByteArray()
-                    }
-                }, Named.`as`("extract-transactions")).to(
+                ).flatMapValues(
+                    { block ->
+                        block.data.txsList
+                    }, Named.`as`("extract-transactions")
+                ).mapValues(
+                    { tx ->
+                        tx.toByteArray()
+                    }, Named.`as`("convert-transactions-to-bytearray")
+                ).to(
                     topicOut, Produced.with(Serdes.String(), Serdes.ByteArray()).withName("output")
                 )
         }.build()