diff --git a/go.mod b/go.mod
index 9e7b712..2c459ba 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.13
 require (
 	github.com/btcsuite/btcd v0.21.0-beta
 	github.com/btcsuite/btcutil v1.0.2
-	github.com/coinbase/rosetta-sdk-go v0.5.8-0.20201027222031-dd9e29377d5f
+	github.com/coinbase/rosetta-sdk-go v0.5.8
 	github.com/dgraph-io/badger/v2 v2.2007.2
 	github.com/grpc-ecosystem/go-grpc-middleware v1.2.2
 	github.com/stretchr/testify v1.6.1
diff --git a/go.sum b/go.sum
index e86bb3d..39f2496 100644
--- a/go.sum
+++ b/go.sum
@@ -63,6 +63,8 @@ github.com/cloudflare/cloudflare-go v0.10.2-0.20190916151808-a80f83b9add9/go.mod
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/coinbase/rosetta-sdk-go v0.5.8-0.20201027222031-dd9e29377d5f h1:aWkN9dKMkMMpZKX5QycpePxH176Fj2fNNC7jESfLZw0=
 github.com/coinbase/rosetta-sdk-go v0.5.8-0.20201027222031-dd9e29377d5f/go.mod h1:l5aNeyeZKBkmWbVdkdLpWdToQ6hTwI7cZ1OU9cMbljY=
+github.com/coinbase/rosetta-sdk-go v0.5.8 h1:Sf7iQPjexIsa7zQfx0PdRIlfsjrDPfBuzyxbJogZDqw=
+github.com/coinbase/rosetta-sdk-go v0.5.8/go.mod h1:xd4wYUhV3LkY78SPH8BUhc88rXfn2jYgN9BfiSjbcvM=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
@@ -275,6 +277,8 @@ github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljT
 github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 github.com/vmihailenco/msgpack/v5 v5.0.0-beta.8 h1:R2L6zPq1pWFumpeIxAJoeiov5GxyEZUq9NyS8eus/6s=
 github.com/vmihailenco/msgpack/v5 v5.0.0-beta.8/go.mod h1:HVxBVPUK/+fZMonk4bi1islLa8V3cfnBug0+4dykPzo=
+github.com/vmihailenco/msgpack/v5 v5.0.0-beta.9 h1:iBRIniTnWOo0kqkg3k3XR8Vn6OCkVlIuZNo0UoBrKx4=
+github.com/vmihailenco/msgpack/v5 v5.0.0-beta.9/go.mod h1:HVxBVPUK/+fZMonk4bi1islLa8V3cfnBug0+4dykPzo=
 github.com/vmihailenco/tagparser v0.1.2 h1:gnjoVuB/kljJ5wICEEOpx98oXMWPLj22G67Vbd1qPqc=
 github.com/vmihailenco/tagparser v0.1.2/go.mod h1:OeAg3pn3UbLjkWt+rN9oFYB6u/cQgqMEUPoW2WPyhdI=
 github.com/wsddn/go-ecdh v0.0.0-20161211032359-48726bab9208/go.mod h1:IotVbo4F+mw0EzQ08zFqg7pK3FebNXpaMsRy2RT+Ees=
diff --git a/indexer/indexer.go b/indexer/indexer.go
index 67514cf..47a3649 100644
--- a/indexer/indexer.go
+++ b/indexer/indexer.go
@@ -52,7 +52,7 @@ const (
 	// estimate for pre-fetching blocks. In other words,
 	// this is the estimated memory overhead for each
 	// block fetched by the indexer.
-	sizeMultiplier = 15
+	sizeMultiplier = 5
 
 	// zeroValue is 0 as a string
 	zeroValue = "0"