diff --git a/context.go b/context.go
index b98f77c..d246ce3 100644
--- a/context.go
+++ b/context.go
@@ -23,7 +23,7 @@ import (
 	"github.com/fenthope/reco"
 	"github.com/go-json-experiment/json"
 
-	"github.com/WJQSERVER-STUDIO/go-utils/copyb"
+	"github.com/WJQSERVER-STUDIO/go-utils/iox"
 	"github.com/WJQSERVER-STUDIO/httpc"
 )
 
@@ -431,7 +431,7 @@ func (c *Context) WriteStream(reader io.Reader) (written int64, err error) {
 		c.Writer.WriteHeader(http.StatusOK) // 默认 200 OK
 	}
 
-	written, err = copyb.Copy(c.Writer, reader) // 从 reader 读取并写入 ResponseWriter
+	written, err = iox.Copy(c.Writer, reader) // 从 reader 读取并写入 ResponseWriter
 	if err != nil {
 		c.AddError(fmt.Errorf("failed to write stream: %w", err))
 	}
@@ -471,7 +471,7 @@ func (c *Context) GetReqBodyFull() ([]byte, error) {
 		}()
 	}
 
-	data, err := copyb.ReadAll(limitBytesReader)
+	data, err := iox.ReadAll(limitBytesReader)
 	if err != nil {
 		c.AddError(fmt.Errorf("failed to read request body: %w", err))
 		return nil, fmt.Errorf("failed to read request body: %w", err)
@@ -505,7 +505,7 @@ func (c *Context) GetReqBodyBuffer() (*bytes.Buffer, error) {
 		}()
 	}
 
-	data, err := copyb.ReadAll(limitBytesReader)
+	data, err := iox.ReadAll(limitBytesReader)
 	if err != nil {
 		c.AddError(fmt.Errorf("failed to read request body: %w", err))
 		return nil, fmt.Errorf("failed to read request body: %w", err)
@@ -678,7 +678,7 @@ func (c *Context) SetBodyStream(reader io.Reader, contentSize int) {
 
 	// 将 reader 的内容直接复制到 ResponseWriter
 	// ResponseWriter 实现了 io.Writer 接口
-	_, err := copyb.Copy(c.Writer, reader)
+	_, err := iox.Copy(c.Writer, reader)
 	if err != nil {
 		c.AddError(fmt.Errorf("failed to write stream: %w", err))
 		// 注意：这里可能无法设置错误状态码，因为头部可能已经发送
@@ -737,7 +737,7 @@ func (c *Context) SetRespBodyFile(code int, filePath string) {
 	c.Writer.WriteHeader(code)
 
 	// 将文件内容写入响应体
-	_, err = copyb.Copy(c.Writer, file)
+	_, err = iox.Copy(c.Writer, file)
 	if err != nil {
 		c.AddError(fmt.Errorf("failed to write file %s to response: %w", cleanPath, err))
 		// 注意：这里可能无法设置错误状态码，因为头部可能已经发送
diff --git a/go.mod b/go.mod
index b956fe8..6b14b15 100644
--- a/go.mod
+++ b/go.mod
@@ -3,13 +3,14 @@ module github.com/infinite-iroha/touka
 go 1.24.4
 
 require (
-	github.com/WJQSERVER-STUDIO/go-utils/copyb v0.0.6
+	github.com/WJQSERVER-STUDIO/go-utils/iox v0.0.2
 	github.com/WJQSERVER-STUDIO/httpc v0.8.1
 	github.com/fenthope/reco v0.0.3
 	github.com/go-json-experiment/json v0.0.0-20250714165856-be8212f5270d
 )
 
 require (
+	github.com/WJQSERVER-STUDIO/go-utils/copyb v0.0.6 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	golang.org/x/net v0.42.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 7495b44..0302b36 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,7 @@
 github.com/WJQSERVER-STUDIO/go-utils/copyb v0.0.6 h1:/50VJYXd6jcu+p5BnEBDyiX0nAyGxas1W3DCnrYMxMY=
 github.com/WJQSERVER-STUDIO/go-utils/copyb v0.0.6/go.mod h1:FZ6XE+4TKy4MOfX1xWKe6Rwsg0ucYFCdNh1KLvyKTfc=
+github.com/WJQSERVER-STUDIO/go-utils/iox v0.0.2 h1:AiIHXP21LpK7pFfqUlUstgQEWzjbekZgxOuvVwiMfyM=
+github.com/WJQSERVER-STUDIO/go-utils/iox v0.0.2/go.mod h1:mCLqYU32bTmEE6dpj37MKKiZgz70Jh/xyK9vVbq6pok=
 github.com/WJQSERVER-STUDIO/httpc v0.8.1 h1:/eG8aYKL3WfQILIRbG+cbzQjPkNHEPTqfGUdQS5rtI4=
 github.com/WJQSERVER-STUDIO/httpc v0.8.1/go.mod h1:mxXBf2hqbQGNHkVy/7wfU7Xi2s09MyZpbY2hyR+4uD4=
 github.com/fenthope/reco v0.0.3 h1:RmnQ0D9a8PWtwOODawitTe4BztTnS9wYwrDbipISNq4=