diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 901e1744..54e7546f 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Release History
 
+## v4.3.9 (2023-09-19)
+- fix:  OCR calls use compressed image
+
 ## v4.3.8 (2023-09-19)
 - feat: OCR calls use the high-precision cluster interface, and the default timeout is changed from 3s to 10s
 - feat: use jpeg to compress screenshots
diff --git a/hrp/internal/version/VERSION b/hrp/internal/version/VERSION
index fdd709db..3a6c610b 100644
--- a/hrp/internal/version/VERSION
+++ b/hrp/internal/version/VERSION
@@ -1 +1 @@
-v4.3.8
+v4.3.9
diff --git a/hrp/pkg/uixt/ext.go b/hrp/pkg/uixt/ext.go
index b9ad0041..28eea07c 100644
--- a/hrp/pkg/uixt/ext.go
+++ b/hrp/pkg/uixt/ext.go
@@ -224,8 +224,30 @@ func (dExt *DriverExt) takeScreenShot(fileName string) (raw *bytes.Buffer, path
 }
 
 func compressImageBuffer(raw *bytes.Buffer) (compressed *bytes.Buffer, err error) {
-	// TODO: compress image data
-	return raw, nil
+	// 解码原始图像数据
+	img, format, err := image.Decode(raw)
+	if err != nil {
+		return nil, err
+	}
+
+	// 创建一个用来保存压缩后数据的buffer
+	var buf bytes.Buffer
+
+	switch format {
+	// Convert to jpeg uniformly and compress with a compression rate of 95
+	case "jpeg", "png":
+		jpegOptions := &jpeg.Options{Quality: 95}
+		err = jpeg.Encode(&buf, img, jpegOptions)
+		if err != nil {
+			return nil, err
+		}
+	default:
+		return nil, fmt.Errorf("unsupported image format: %s", format)
+	}
+
+	// 返回压缩后的图像数据
+	return &buf, nil
+
 }
 
 // saveScreenShot saves image file with file name
@@ -252,9 +274,8 @@ func (dExt *DriverExt) saveScreenShot(raw *bytes.Buffer, fileName string) (strin
 	}()
 
 	switch format {
-	// Convert to jpeg uniformly and compress with a compression rate of 95
 	case "jpeg", "png":
-		jpegOptions := &jpeg.Options{Quality: 95}
+		jpegOptions := &jpeg.Options{}
 		err = jpeg.Encode(file, img, jpegOptions)
 	default:
 		return "", fmt.Errorf("unsupported image format: %s", format)