diff --git a/deepdoc/parser/pdf_parser.py b/deepdoc/parser/pdf_parser.py
index 29947f7d93..909b89d5cc 100644
--- a/deepdoc/parser/pdf_parser.py
+++ b/deepdoc/parser/pdf_parser.py
@@ -23,7 +23,7 @@
 from PIL import Image, ImageDraw
 import numpy as np
 from timeit import default_timer as timer
-from PyPDF2 import PdfReader as pdf2_read
+from pypdf import PdfReader as pdf2_read
 
 from api.utils.file_utils import get_project_base_directory
 from deepdoc.vision import OCR, Recognizer, LayoutRecognizer, TableStructureRecognizer
diff --git a/requirements.txt b/requirements.txt
index e50d7f86cc..1752b7759a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -79,3 +79,4 @@ word2number==1.1
 xgboost==2.1.0
 xpinyin==0.7.6
 zhipuai==2.0.1
+pypdf==4.3.0
diff --git a/requirements_arm.txt b/requirements_arm.txt
index 3650ca538d..1a8f6a137e 100644
--- a/requirements_arm.txt
+++ b/requirements_arm.txt
@@ -153,3 +153,4 @@ groq==0.9.0
 wikipedia==1.4.0
 Bio==1.7.1
 arxiv==2.1.3
+pypdf==4.3.0
diff --git a/requirements_dev.txt b/requirements_dev.txt
index ee08297370..f518cab644 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -138,3 +138,4 @@ groq==0.9.0
 wikipedia==1.4.0
 Bio==1.7.1
 arxiv==2.1.3
+pypdf==4.3.0