diff --git a/blockchain/go.mod b/blockchain/go.mod
index 6b20fbd..5b11c93 100644
--- a/blockchain/go.mod
+++ b/blockchain/go.mod
@@ -3,8 +3,8 @@ module github.com/cerebellum-network/cere-ddc-sdk-go/blockchain
 go 1.18
 
 require (
-	github.com/cenkalti/backoff v2.2.1+incompatible
 	github.com/centrifuge/go-substrate-rpc-client/v4 v4.2.1
+	golang.org/x/sync v0.7.0
 )
 
 require (
@@ -28,7 +28,6 @@ require (
 	github.com/vedhavyas/go-subkey/v2 v2.0.0 // indirect
 	golang.org/x/crypto v0.18.0 // indirect
 	golang.org/x/exp v0.0.0-20240112132812-db7319d0e0e3 // indirect
-	golang.org/x/sync v0.7.0 // indirect
 	golang.org/x/sys v0.16.0 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
diff --git a/blockchain/go.sum b/blockchain/go.sum
index c5b9949..462485b 100644
--- a/blockchain/go.sum
+++ b/blockchain/go.sum
@@ -6,8 +6,6 @@ github.com/Microsoft/go-winio v0.6.1 h1:9/kr64B9VUZrLm5YYwbGtUJnMgqWVOdUAXu6Migc
 github.com/StackExchange/wmi v1.2.1 h1:VIkavFPXSjcnS+O8yTq7NI32k0R5Aj+v39y29VYDOSA=
 github.com/btcsuite/btcd/btcec/v2 v2.2.0 h1:fzn1qaOt32TuLjFlkzYSsBC35Q3KUjT1SwPxiMSCF5k=
 github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce h1:YtWJF7RHm2pYCvA5t0RPmAaLUhREsKuKd+SLhxFbFeQ=
-github.com/cenkalti/backoff v2.2.1+incompatible h1:tNowT99t7UNflLxfYYSlKYsBpXdEet03Pg2g16Swow4=
-github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
 github.com/cosmos/go-bip39 v1.0.0 h1:pcomnQdrdH22njcAatO0yWojsUnCO3y2tNoV1cb6hHY=
 github.com/cosmos/go-bip39 v1.0.0/go.mod h1:RNJv0H/pOIVgxw6KS7QeX2a0Uo0aKUlfhZ4xuwvCdJw=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=