diff --git a/camelot/utils.py b/camelot/utils.py
index 1f54485..442c807 100644
--- a/camelot/utils.py
+++ b/camelot/utils.py
@@ -14,7 +14,7 @@
 from pdfminer.pdfparser import PDFParser
 from pdfminer.pdfdocument import PDFDocument
 from pdfminer.pdfpage import PDFPage
-from pdfminer.pdfpage import PDFTextExtractionNotAllowed
+from pdfminer.pdfpage import PDFTextExtractionNotAllowedError
 from pdfminer.pdfinterp import PDFResourceManager
 from pdfminer.pdfinterp import PDFPageInterpreter
 from pdfminer.converter import PDFPageAggregator
@@ -780,7 +780,7 @@ def get_page_layout(
         parser = PDFParser(f)
         document = PDFDocument(parser)
         if not document.is_extractable:
-            raise PDFTextExtractionNotAllowed
+            raise PDFTextExtractionNotAllowedError(f"Text extraction is not allowed: {filename}")
         laparams = LAParams(
             char_margin=char_margin,
             line_margin=line_margin,
diff --git a/requirements.txt b/requirements.txt
index 6db324b..887a89b 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,6 @@ numpy>=1.13.3
 opencv-python>=3.4.2.17
 openpyxl>=2.5.8
 pandas>=0.23.4
-pdfminer.six>=20170720
+pdfminer.six>=20200720
 PyPDF2>=1.26.0
 Sphinx>=1.7.9
diff --git a/setup.py b/setup.py
index 9b1a322..1f8ab73 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
     'numpy>=1.13.3',
     'openpyxl>=2.5.8',
     'pandas>=0.23.4',
-    'pdfminer.six>=20170720',
+    'pdfminer.six>=20200720',
     'PyPDF2>=1.26.0'
 ]