diff --git a/go.mod b/go.mod
index e916f9c..7241541 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 v0.4.6
+	github.com/coinbase/rosetta-sdk-go v0.4.8
 	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 d92d442..7e8bc51 100644
--- a/go.sum
+++ b/go.sum
@@ -69,6 +69,10 @@ github.com/coinbase/rosetta-sdk-go v0.4.4 h1:zTUS4bVlTfD4xq/o6JtsuU+g9sf3+S3Nnn2
 github.com/coinbase/rosetta-sdk-go v0.4.4/go.mod h1:Luv0AhzZH81eul2hYZ3w0hBGwmFPiexwbntYxihEZck=
 github.com/coinbase/rosetta-sdk-go v0.4.6 h1:zX2SLmBF1oFbK0c4QCMwkwcHN9VjenFfIt0Dr8k8JGY=
 github.com/coinbase/rosetta-sdk-go v0.4.6/go.mod h1:Luv0AhzZH81eul2hYZ3w0hBGwmFPiexwbntYxihEZck=
+github.com/coinbase/rosetta-sdk-go v0.4.7 h1:5KFc0CgLMkKamX++hYUFvE58a5/tCn0wSqpcTnDhRhY=
+github.com/coinbase/rosetta-sdk-go v0.4.7/go.mod h1:8d4iN4VSGvLUzl+jRQlvYSLyS9TeY0QZebneWouizqU=
+github.com/coinbase/rosetta-sdk-go v0.4.8 h1:+E1TM4q1c5/x/jE9FPI1IZIbNvUWy4tRRgDPLnKzUV4=
+github.com/coinbase/rosetta-sdk-go v0.4.8/go.mod h1:8d4iN4VSGvLUzl+jRQlvYSLyS9TeY0QZebneWouizqU=
 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=
@@ -102,6 +106,7 @@ github.com/docker/docker v1.4.2-0.20180625184442-8e610b2b55bf/go.mod h1:eEKB0N0r
 github.com/dop251/goja v0.0.0-20200721192441-a695b0cdd498/go.mod h1:Mw6PkjjMXWbTj+nnj4s3QPXq1jaT0s5pC0iFD4+BOAA=
 github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
+github.com/dvyukov/go-fuzz v0.0.0-20200318091601-be3528f3a813/go.mod h1:11Gm+ccJnvAhCNLlf5+cS9KjtbaD5I5zaZpFMsTHWTw=
 github.com/edsrzf/mmap-go v0.0.0-20160512033002-935e0e8a636c/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -109,6 +114,8 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/ethereum/go-ethereum v1.9.21 h1:8qRlhzrItnmUGdVlBzZLI2Tb46S0RdSNjFwICo781ws=
 github.com/ethereum/go-ethereum v1.9.21/go.mod h1:RXAVzbGrSGmDkDnHymruTAIEjUR3E4TX0EOpaj702sI=
+github.com/ethereum/go-ethereum v1.9.22 h1:/Fea9n2EWJuNJ9oahMq9luqjRBcbW7QWdThbcJl13ek=
+github.com/ethereum/go-ethereum v1.9.22/go.mod h1:FQjK3ZwD8C5DYn7ukTmFee36rq1dOMESiUfXr5RUc1w=
 github.com/fatih/color v1.3.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
@@ -158,6 +165,7 @@ github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=
 github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/gofuzz v1.1.1-0.20200604201612-c04b05f3adfa/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/pprof v0.0.0-20181127221834-b4f47329b966/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
@@ -348,6 +356,7 @@ golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a h1:vclmkQCjlDX5OydZ9wv8rB
 golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56/go.mod h1:JhuoJpWY28nO4Vef9tZUw9qufEGTyX1+7lmHxV5q5G4=
 golang.org/x/exp v0.0.0-20200331195152-e8c3332aa8e5/go.mod h1:4M0jN8W1tt0AVLNr8HDosyJCDCDuyL9N9+3m7wDWgKw=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
@@ -356,11 +365,15 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3 h1:XQyxROzUlZH+WIQwySDgnISgOivlhjIEwaQaJEJrrN0=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
+golang.org/x/mobile v0.0.0-20200801112145-973feb4309de/go.mod h1:skQtrUTUwhdJvXM/2KKJzY8pDgNr9I/FOMqDVRPBUS4=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
+golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b h1:GgiSbuUyC0BlbUmHQBgFqu32eiRR/CEYdjOjOd4zE6Y=
 golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
+golang.org/x/mod v0.1.1-0.20191209134235-331c550502dd/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
@@ -432,6 +445,7 @@ golang.org/x/tools v0.0.0-20181127232545-e782529d0ddd/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20191024220359-3d91e92cde03 h1:4gtJXHJ9ud0q8MNSDxJsRU/WH+afypbe4Vk4zq+8qow=
@@ -440,6 +454,7 @@ golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200207183749-b753a1ba74fa h1:5E4dL8+NgFOgjwbTKz+OOEGGhP+ectTmF842l6KjupQ=
 golang.org/x/tools v0.0.0-20200207183749-b753a1ba74fa/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200626171337-aa94e735be7f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
diff --git a/indexer/indexer.go b/indexer/indexer.go
index cfc37c0..b03f29c 100644
--- a/indexer/indexer.go
+++ b/indexer/indexer.go
@@ -29,6 +29,7 @@ import (
 	"github.com/coinbase/rosetta-sdk-go/storage"
 	"github.com/coinbase/rosetta-sdk-go/syncer"
 	"github.com/coinbase/rosetta-sdk-go/types"
+	sdkUtils "github.com/coinbase/rosetta-sdk-go/utils"
 	"github.com/dgraph-io/badger/v2"
 )
 
@@ -194,7 +195,7 @@ func (i *Indexer) waitForNode(ctx context.Context) error {
 		}
 
 		logger.Infow("waiting for bitcoind...")
-		if err := utils.ContextSleep(ctx, nodeWaitSleep); err != nil {
+		if err := sdkUtils.ContextSleep(ctx, nodeWaitSleep); err != nil {
 			return err
 		}
 	}
@@ -394,7 +395,7 @@ func (i *Indexer) findCoin(
 			databaseTransaction,
 		)
 		if errors.Is(err, storage.ErrHeadBlockNotFound) {
-			if err := utils.ContextSleep(ctx, missingTransactionDelay); err != nil {
+			if err := sdkUtils.ContextSleep(ctx, missingTransactionDelay); err != nil {
 				return nil, nil, err
 			}
 
@@ -604,7 +605,7 @@ func (i *Indexer) Block(
 			return nil, fmt.Errorf("%w: unable to get raw block %+v", err, blockIdentifier)
 		}
 
-		if err := utils.ContextSleep(ctx, retryDelay); err != nil {
+		if err := sdkUtils.ContextSleep(ctx, retryDelay); err != nil {
 			return nil, err
 		}
 	}
diff --git a/utils/utils.go b/utils/utils.go
index a283023..4ad429b 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -16,7 +16,6 @@ package utils
 
 import (
 	"context"
-	"runtime"
 	"time"
 
 	sdkUtils "github.com/coinbase/rosetta-sdk-go/utils"
@@ -41,23 +40,6 @@ func ExtractLogger(ctx context.Context, origin string) *zap.SugaredLogger {
 	return logger.Sugar()
 }
 
-// ContextSleep sleeps for the provided duration and returns
-// an error if context is canceled.
-func ContextSleep(ctx context.Context, duration time.Duration) error {
-	timer := time.NewTimer(duration)
-	defer timer.Stop()
-
-	for {
-		select {
-		case <-ctx.Done():
-			return ctx.Err()
-
-		case <-timer.C:
-			return nil
-		}
-	}
-}
-
 // MonitorMemoryUsage periodically logs memory usage
 // stats and triggers garbage collection when heap allocations
 // surpass maxHeapUsage.
@@ -70,32 +52,24 @@ func MonitorMemoryUsage(
 	maxHeap := float64(0)
 	garbageCollections := uint32(0)
 	for ctx.Err() == nil {
-		var m runtime.MemStats
-		runtime.ReadMemStats(&m)
-
-		heapAlloc := float64(m.HeapAlloc)
-		if heapAlloc > maxHeap {
-			maxHeap = heapAlloc
+		memUsage := sdkUtils.MonitorMemoryUsage(ctx, maxHeapUsage)
+		if memUsage.Heap > maxHeap {
+			maxHeap = memUsage.Heap
 		}
 
-		heapAllocMB := sdkUtils.BtoMb(heapAlloc)
-		if heapAllocMB > float64(maxHeapUsage) {
-			runtime.GC()
-		}
-
-		if m.NumGC > garbageCollections {
-			garbageCollections = m.NumGC
+		if memUsage.GarbageCollections > garbageCollections {
+			garbageCollections = memUsage.GarbageCollections
 			logger.Debugw(
 				"stats",
-				"heap (MB)", heapAllocMB,
-				"max heap (MB)", sdkUtils.BtoMb(maxHeap),
-				"stack (MB)", sdkUtils.BtoMb(float64(m.StackInuse)),
-				"system (MB)", sdkUtils.BtoMb(float64(m.Sys)),
-				"garbage collections", m.NumGC,
+				"heap (MB)", memUsage.Heap,
+				"max heap (MB)", maxHeap,
+				"stack (MB)", memUsage.Stack,
+				"system (MB)", memUsage.System,
+				"garbage collections", memUsage.GarbageCollections,
 			)
 		}
 
-		if err := ContextSleep(ctx, monitorMemorySleep); err != nil {
+		if err := sdkUtils.ContextSleep(ctx, monitorMemorySleep); err != nil {
 			return err
 		}
 	}