diff --git a/requirements.txt b/requirements.txt
index c2c385c9..e07f6554 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 signxml==2.9.0 ; python_version < '3.7'
 signxml ; python_version >= '3.7'
 lxml >= 4.2.1
-cryptography >= 3.4.8
+cryptography >= 3.4.8, <= 23.2.0
 pyOpenSSL >= 22.1.0
 certifi >=  2018.1.18
 
diff --git a/setup.py b/setup.py
index d591be8b..f6ae644d 100644
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@
         'xmlsec >= 1.3.13',  # apt update;apt install libxmlsec1-dev pkg-config -y
         'lxml >= 4.2.1',
         'cryptography >= 3.4.8',
-        'pyOpenSSL >= 17.5.0',
+        'pyOpenSSL >= 17.5.0 <= 23.2.0',
         'certifi >=  2018.1.18',
         'urllib3',
         'Jinja2',