diff --git a/.codecov.yml b/.codecov.yml
index 3881dfe42..98a4470fb 100644
--- a/.codecov.yml
+++ b/.codecov.yml
@@ -13,3 +13,6 @@ coverage:
         # pass if coverage drops by no more than 0.05%
         # this is possibly caused by unstable coverage.
         threshold: 0.05%
+    patch:
+      default:
+        target: 80%
diff --git a/go.mod b/go.mod
index 8e623038d..49439ba26 100644
--- a/go.mod
+++ b/go.mod
@@ -5,8 +5,8 @@ go 1.19
 require (
 	github.com/bytedance/gopkg v0.1.3
 	github.com/bytedance/sonic v1.15.0
-	github.com/cloudwego/gopkg v0.1.11-0.20260226101607-10def4e32fd1
-	github.com/cloudwego/netpoll v0.7.2
+	github.com/cloudwego/gopkg v0.1.11-0.20260303065100-1e5551ecf390
+	github.com/cloudwego/netpoll v0.7.3-0.20260305035010-81277e4f7b67
 	github.com/fsnotify/fsnotify v1.5.4
 	github.com/stretchr/testify v1.10.0
 	github.com/tidwall/gjson v1.14.4
diff --git a/go.sum b/go.sum
index e78e93310..b9bd645de 100644
--- a/go.sum
+++ b/go.sum
@@ -8,10 +8,10 @@ github.com/bytedance/sonic/loader v0.5.0/go.mod h1:AR4NYCk5DdzZizZ5djGqQ92eEhCCc
 github.com/cloudwego/base64x v0.1.6 h1:t11wG9AECkCDk5fMSoxmufanudBtJ+/HemLstXDLI2M=
 github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gEHfghB2IPU=
 github.com/cloudwego/gopkg v0.1.4/go.mod h1:FQuXsRWRsSqJLsMVd5SYzp8/Z1y5gXKnVvRrWUOsCMI=
-github.com/cloudwego/gopkg v0.1.11-0.20260226101607-10def4e32fd1 h1:wg+raHia1H813G0yldWSUb5dzgWccrOEftHct9O7Nvs=
-github.com/cloudwego/gopkg v0.1.11-0.20260226101607-10def4e32fd1/go.mod h1:wQv2rXOgrRCYdIrOce+xnAF7MA30CkofQZ3JHZOXY+8=
-github.com/cloudwego/netpoll v0.7.2 h1:4qDBGQ6CG2SvEXhZSDxMdtqt/NLDxjAVk0PC/biKiJo=
-github.com/cloudwego/netpoll v0.7.2/go.mod h1:PI+YrmyS7cIr0+SD4seJz3Eo3ckkXdu2ZVKBLhURLNU=
+github.com/cloudwego/gopkg v0.1.11-0.20260303065100-1e5551ecf390 h1:DERt3Cue/q307RWCd+pPXvzuqmujrrzORgShkeU4Q0s=
+github.com/cloudwego/gopkg v0.1.11-0.20260303065100-1e5551ecf390/go.mod h1:wQv2rXOgrRCYdIrOce+xnAF7MA30CkofQZ3JHZOXY+8=
+github.com/cloudwego/netpoll v0.7.3-0.20260305035010-81277e4f7b67 h1:0dwPCnAMoeEupEKCAR4paadnmaq39MVdxvmEVlwcu3g=
+github.com/cloudwego/netpoll v0.7.3-0.20260305035010-81277e4f7b67/go.mod h1:PI+YrmyS7cIr0+SD4seJz3Eo3ckkXdu2ZVKBLhURLNU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
diff --git a/pkg/app/server/hertz_test.go b/pkg/app/server/hertz_test.go
index d27f83b31..d17de55f3 100644
--- a/pkg/app/server/hertz_test.go
+++ b/pkg/app/server/hertz_test.go
@@ -85,9 +85,8 @@ func TestHertz_Run(t *testing.T) {
 	waitEngineRunning(hertz)
 
 	hertz.Close()
-	resp, err := http.Get(fullURL(ln, "/test"))
-	assert.NotNil(t, err)
-	assert.Nil(t, resp)
+	time.Sleep(10 * time.Millisecond)
+	// Close will not call OnShutdown
 	assert.DeepEqual(t, uint32(0), atomic.LoadUint32(&testint))
 }
 
diff --git a/pkg/network/standard/connection.go b/pkg/network/standard/connection.go
index d42c7850e..485bca488 100644
--- a/pkg/network/standard/connection.go
+++ b/pkg/network/standard/connection.go
@@ -26,7 +26,7 @@ import (
 	"time"
 
 	"github.com/cloudwego/gopkg/bufiox"
-	"github.com/cloudwego/gopkg/connstate"
+	"github.com/cloudwego/gopkg/net/connstate"
 
 	errs "github.com/cloudwego/hertz/pkg/common/errors"
 	"github.com/cloudwego/hertz/pkg/common/hlog"
@@ -38,6 +38,8 @@ type Conn struct {
 	br     *bufiox.DefaultReader
 	bw     *bufiox.DefaultWriter
 	stater connstate.ConnStater
+
+	buf [8]byte
 }
 
 func (c *Conn) ToHertzError(err error) error {
@@ -100,15 +102,13 @@ func (c *Conn) Len() int {
 }
 
 // ReadByte is used to read one byte with advancing the read pointer.
-func (c *Conn) ReadByte() (byte, error) {
-	b, err := c.Peek(1)
+func (c *Conn) ReadByte() (b byte, err error) {
+	// Use Read instead of Peek+Skip to avoid holding a ref to the underlying buffer.
+	_, err = c.br.Read(c.buf[:1])
 	if err == nil {
-		err = c.Skip(1)
-	}
-	if err != nil {
-		return ' ', err
+		b = c.buf[0]
 	}
-	return b[0], nil
+	return
 }
 
 // ReadBinary is used to read next n byte with copy, and the read pointer will be advanced.
diff --git a/pkg/network/standard/transport.go b/pkg/network/standard/transport.go
index 358ee7d26..b5f5bd0bf 100644
--- a/pkg/network/standard/transport.go
+++ b/pkg/network/standard/transport.go
@@ -26,7 +26,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/cloudwego/gopkg/connstate"
+	"github.com/cloudwego/gopkg/net/connstate"
 
 	"github.com/cloudwego/hertz/pkg/common/config"
 	"github.com/cloudwego/hertz/pkg/common/hlog"
diff --git a/pkg/network/standard/unix_test.go b/pkg/network/standard/unix_test.go
index 39bc21955..b557409f5 100644
--- a/pkg/network/standard/unix_test.go
+++ b/pkg/network/standard/unix_test.go
@@ -22,7 +22,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/cloudwego/gopkg/connstate"
+	"github.com/cloudwego/gopkg/net/connstate"
 
 	"github.com/cloudwego/hertz/pkg/common/config"
 )
diff --git a/pkg/protocol/http1/ext/common.go b/pkg/protocol/http1/ext/common.go
index 90cd3b982..a2d5e1ff1 100644
--- a/pkg/protocol/http1/ext/common.go
+++ b/pkg/protocol/http1/ext/common.go
@@ -176,6 +176,12 @@ func appendBodyFixedSize(r network.Reader, dst []byte, n int) ([]byte, error) {
 	}
 	dst = dst[:dstLen]
 
+	// Prefer io.Reader over Peek to avoid holding a ref to the underlying buffer.
+	if rd, ok := r.(io.Reader); ok {
+		rn, err := io.ReadFull(rd, dst[offset:])
+		return dst[:offset+rn], err
+	}
+
 	// Peek can get all data, otherwise it will through error
 	buf, err := r.Peek(n)
 	if err != nil {