diff --git a/bt5/erp5_pdf_merge/ExtensionTemplateItem/portal_components/extension.erp5.ERP5PDFMerge.py b/bt5/erp5_pdf_merge/ExtensionTemplateItem/portal_components/extension.erp5.ERP5PDFMerge.py
index 17dfbaa3b2ecc72ea3f8fa6234757b613d4c3d25..286ee834a5175693454a704433d9303e023c8e1b 100644
--- a/bt5/erp5_pdf_merge/ExtensionTemplateItem/portal_components/extension.erp5.ERP5PDFMerge.py
+++ b/bt5/erp5_pdf_merge/ExtensionTemplateItem/portal_components/extension.erp5.ERP5PDFMerge.py
@@ -36,7 +36,7 @@ def mergePDFList(self, pdf_data_list, start_on_recto=False):
   merged pdf in recto/verso mode.
   """
   from StringIO import StringIO
-  from pyPdf import PdfFileWriter, PdfFileReader
+  from PyPdf2 import PdfFileWriter, PdfFileReader
   
   output = PdfFileWriter()
   
diff --git a/bt5/erp5_pdf_merge/bt/revision b/bt5/erp5_pdf_merge/bt/revision
index bf0d87ab1b2b0ec1a11a3973d2845b42413d9767..7813681f5b41c028345ca62a2be376bae70b7f61 100644
--- a/bt5/erp5_pdf_merge/bt/revision
+++ b/bt5/erp5_pdf_merge/bt/revision
@@ -1 +1 @@
-4
\ No newline at end of file
+5
\ No newline at end of file