diff --git a/imageknife/PngWork.js b/imageknife/PngWork.js
index d92a374..1a86729 100644
--- a/imageknife/PngWork.js
+++ b/imageknife/PngWork.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 import arkWorker from '@ohos.worker';
-import {UPNG} from './src/main/ets/components/imageknife/pngj/UPNG'
+import {UPNG} from './src/main/ets/components/3rd_party/upng/UPNG'
 
 export  function handler (e) {
   var data = e.data;
diff --git a/imageknife/index.ets b/imageknife/index.ets
index 9430bae..f0c209b 100644
--- a/imageknife/index.ets
+++ b/imageknife/index.ets
@@ -85,7 +85,7 @@ export * from './src/main/ets/components/imageknife/transform/pixelmap/FitCenter
  */
 export * from './src/main/ets/components/imageknife/pngj/Pngj'
 export {handler} from './PngWork'
-export * from './src/main/ets/components/imageknife/pngj/UPNG'
+export * from './src/main/ets/components/3rd_party/upng/UPNG'
 
 
 
diff --git a/imageknife/src/main/ets/components/imageknife/pngj/UPNG.js b/imageknife/src/main/ets/components/3rd_party/upng/UPNG.js
similarity index 99%
rename from imageknife/src/main/ets/components/imageknife/pngj/UPNG.js
rename to imageknife/src/main/ets/components/3rd_party/upng/UPNG.js
index 8605db7..bfb54f2 100644
--- a/imageknife/src/main/ets/components/imageknife/pngj/UPNG.js
+++ b/imageknife/src/main/ets/components/3rd_party/upng/UPNG.js
@@ -20,8 +20,7 @@
 *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 *SOFTWARE.*/
-//const pako = require('pako');
-import {deflate} from '../../3rd_party/pako/lib/deflate'
+import {deflate} from '../pako/lib/deflate'
 var pako = {deflate}
 const UZIP = null;
 
diff --git a/imageknife/src/main/ets/components/imageknife/pngj/Pngj.ets b/imageknife/src/main/ets/components/imageknife/pngj/Pngj.ets
index 1b726c5..5dfdd11 100644
--- a/imageknife/src/main/ets/components/imageknife/pngj/Pngj.ets
+++ b/imageknife/src/main/ets/components/imageknife/pngj/Pngj.ets
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import {UPNG} from '../pngj/UPNG';
+import {UPNG} from '../../3rd_party/upng/UPNG';
 import {PngCallback} from '../pngj/PngCallback';
 import image from '@ohos.multimedia.image';
 import resourceManager from '@ohos.resourceManager';