diff --git a/go.mod b/go.mod
index f2dc249..62c620b 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.20
 
 require (
 	github.com/Salvionied/apollo v1.0.11
-	github.com/blinklabs-io/bursa v0.7.0
+	github.com/blinklabs-io/bursa v0.7.1
 	github.com/blinklabs-io/cardano-models v0.3.1
 	github.com/blinklabs-io/gouroboros v0.76.0
 	github.com/blinklabs-io/snek v0.17.3
@@ -49,7 +49,7 @@ require (
 	github.com/google/flatbuffers v1.12.1 // indirect
 	github.com/jinzhu/copier v0.4.0 // indirect
 	github.com/klauspost/compress v1.12.3 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
diff --git a/go.sum b/go.sum
index be1e5d5..44b08c9 100644
--- a/go.sum
+++ b/go.sum
@@ -5,8 +5,8 @@ github.com/Salvionied/apollo v1.0.11/go.mod h1:5hgk1k4EiWmAoy2yU3q6+clmA4tgnHC4X
 github.com/Salvionied/cbor/v2 v2.6.0 h1:OEwlZLiodLdNeM9wFoSydLvj6/rHRaxu5G8VzwXSeuY=
 github.com/Salvionied/cbor/v2 v2.6.0/go.mod h1:oFxaUo/mQ5sG1k459nzctGdYa80jy0ZqZ9pln9C/fGw=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
-github.com/blinklabs-io/bursa v0.7.0 h1:i0VbHfnQ/MjStIDN6ApZYV4NWtLPcYkCmym+PcCjPgA=
-github.com/blinklabs-io/bursa v0.7.0/go.mod h1:5oA7x2aBuRXnQUG/xJK64BqsJHoA+Thj0HU41BJonQI=
+github.com/blinklabs-io/bursa v0.7.1 h1:RJ22jtpz1Qa8vYUV8X8svx0k13rcFFksXLibWxN7JHA=
+github.com/blinklabs-io/bursa v0.7.1/go.mod h1:CeHkFk0gtTEbYaYvnos5TDhxAOPqkwE2Ja8nwqLKuDw=
 github.com/blinklabs-io/cardano-models v0.3.1 h1:CtojPKiiOnd8o3NCsPZM3HYkyQ9mSVqKUz7gFKTVfZU=
 github.com/blinklabs-io/cardano-models v0.3.1/go.mod h1:Z2t4gGSyLGXMRS+BkhED4AUGDIh5rI8NTNInZYBT7eg=
 github.com/blinklabs-io/gouroboros v0.76.0 h1:o1GHNW/p3AYEd2ubfZTQb6FWmyt2zKCZEwg5k8J4Pbc=
@@ -85,8 +85,8 @@ github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+o
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
 github.com/klauspost/compress v1.12.3 h1:G5AfA94pHPysR56qqrkO2pxEexdDzrpFJ6yt/VqWxVU=
 github.com/klauspost/compress v1.12.3/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
-github.com/klauspost/cpuid/v2 v2.2.5 h1:0E5MSMDEoAulmXNFquVs//DdoomxaoTY1kUhbc/qbZg=
-github.com/klauspost/cpuid/v2 v2.2.5/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
+github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
+github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
diff --git a/internal/tx/tx.go b/internal/tx/tx.go
index 3b2e7a0..5aebb5c 100644
--- a/internal/tx/tx.go
+++ b/internal/tx/tx.go
@@ -208,7 +208,7 @@ func createTx(blockData any, nonce [16]byte) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	sKeyBytes, err := hex.DecodeString(bursa.PaymentESKey.CborHex)
+	sKeyBytes, err := hex.DecodeString(bursa.PaymentExtendedSKey.CborHex)
 	if err != nil {
 		return nil, err
 	}