diff --git a/polipy/requirements.txt b/polipy/requirements.txt
index fb54251..f29a76e 100644
--- a/polipy/requirements.txt
+++ b/polipy/requirements.txt
@@ -2,7 +2,7 @@ beautifulsoup4==4.9.3
 certifi==2020.12.5
 cffi==1.14.5
 chardet==4.0.0
-cryptography==3.4.7
+cryptography==39.0.1
 filelock==3.0.12
 idna==2.10
 pdfminer.six==20201018