correct go-ethereum version (#17)

go.mod

@@ -3,18 +3,29 @@ module github.com/iotexproject/go-pkgs
 go 1.14
 
 require (
+	github.com/allegro/bigcache v1.2.1 // indirect
 	github.com/aristanetworks/goarista v0.0.0-20190429220743-799535f6f364 // indirect
 	github.com/btcsuite/btcd v0.0.0-20190427004231-96897255fd17 // indirect
 	github.com/cespare/cp v1.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set v1.7.1 // indirect
 	github.com/dustinxie/gmsm v1.2.1-0.20200206225615-ad1978e2c91f
-	github.com/ethereum/go-ethereum v1.9.23
+	github.com/elastic/gosigar v0.12.0 // indirect
+	github.com/ethereum/go-ethereum v1.8.27
+	github.com/go-stack/stack v1.8.0 // indirect
 	github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef
+	github.com/golang/snappy v0.0.2-0.20200707131729-196ae77b8a26 // indirect
+	github.com/kr/pretty v0.1.0 // indirect
 	github.com/pborman/uuid v1.2.0 // indirect
-	github.com/pkg/errors v0.8.1
+	github.com/pkg/errors v0.9.1
 	github.com/rjeczalik/notify v0.9.2 // indirect
+	github.com/steakknife/bloomfilter v0.0.0-20180922174646-6819c0d2a570 // indirect
+	github.com/steakknife/hamming v0.0.0-20180906055917-c99c65617cd3 // indirect
 	github.com/stretchr/testify v1.4.0
+	github.com/syndtr/goleveldb v1.0.1-0.20200815110645-5c35d600f0ca // indirect
 	golang.org/x/net v0.0.0-20200822124328-c89045814202
+	golang.org/x/sys v0.0.0-20200824131525-c12d262b63d8 // indirect
+	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 )
 
-replace github.com/ethereum/go-ethereum v1.8.27 => github.com/iotexproject/go-ethereum v0.1.0
+replace github.com/ethereum/go-ethereum v1.8.27 => github.com/iotexproject/go-ethereum v0.3.1