diff --git a/api/debug/api.go b/api/debug/api.go
index ff84a6924..4300dbd0f 100644
--- a/api/debug/api.go
+++ b/api/debug/api.go
@@ -145,7 +145,6 @@ func (h *HandlerT) StartPProf(ptrAddr *string, ptrPort *int) error {
 		// Hook go-metrics into expvar on any /debug/metrics request, load all vars
 		// from the registry into expvar, and execute regular expvar handler.
 		exp.Exp(metrics.DefaultRegistry)
-		http.Handle("/memsize/", http.StripPrefix("/memsize", &Memsize))
 		h.handlerInited = true
 	}
 
diff --git a/api/debug/flags.go b/api/debug/flags.go
index da881b8fc..66a6c9635 100644
--- a/api/debug/flags.go
+++ b/api/debug/flags.go
@@ -30,7 +30,6 @@ import (
 	"path/filepath"
 	"runtime"
 
-	"github.com/fjl/memsize/memsizeui"
 	"github.com/kaiachain/kaia/log"
 	"github.com/mattn/go-colorable"
 	"github.com/mattn/go-isatty"
@@ -39,8 +38,6 @@ import (
 	"gopkg.in/natefinch/lumberjack.v2"
 )
 
-var Memsize memsizeui.Handler
-
 var (
 	verbosityFlag = &cli.IntFlag{
 		Name:     "verbosity",
diff --git a/cmd/utils/nodecmd/defaultcmd.go b/cmd/utils/nodecmd/defaultcmd.go
index d5d64a51d..dd5f666e1 100644
--- a/cmd/utils/nodecmd/defaultcmd.go
+++ b/cmd/utils/nodecmd/defaultcmd.go
@@ -80,8 +80,6 @@ func MakeFullNode(ctx *cli.Context) *node.Node {
 // it unlocks any requested accounts, and starts the RPC/IPC interfaces and the
 // miner.
 func startNode(ctx *cli.Context, stack *node.Node) {
-	debug.Memsize.Add("node", stack)
-
 	// Ntp time check
 	if err := node.NtpCheckWithLocal(stack); err != nil {
 		log.Fatalf("System time should be synchronized: %v", err)
diff --git a/go.mod b/go.mod
index 3b87654f2..99b4e00c3 100644
--- a/go.mod
+++ b/go.mod
@@ -20,7 +20,6 @@ require (
 	github.com/edsrzf/mmap-go v1.0.0
 	github.com/ethereum/c-kzg-4844 v0.4.0
 	github.com/fatih/color v1.9.0
-	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5
 	github.com/go-redis/redis/v7 v7.4.0
 	github.com/go-sql-driver/mysql v1.6.0
 	github.com/go-stack/stack v1.8.0
diff --git a/go.sum b/go.sum
index 04ecb7772..2fc698420 100644
--- a/go.sum
+++ b/go.sum
@@ -214,8 +214,6 @@ 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=
 github.com/ferranbt/fastssz v0.1.3 h1:ZI+z3JH05h4kgmFXdHuR1aWYsgrg7o+Fw7/NCzM16Mo=
 github.com/ferranbt/fastssz v0.1.3/go.mod h1:0Y9TEd/9XuFlh7mskMPfXiI2Dkw4Ddg9EyXt1W7MRvE=
-github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 h1:FtmdgXiUlNeRsoNMFlKLDt+S+6hbjVMEW6RGQ7aUf7c=
-github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/fortytw2/leaktest v1.3.0 h1:u8491cBMTQ8ft8aeV+adlcytMZylmA5nnwwkRZjI8vw=
 github.com/fortytw2/leaktest v1.3.0/go.mod h1:jDsjWgpAGjm2CA7WthBh/CdZYEPF31XHquHwclZch5g=