diff --git a/pyproject.toml b/pyproject.toml
index 0771319..afbdf60 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ test = [
     'flake8>=5,<8',
     'psutil',
     'pycodestyle>=2.9,<2.15',
-    'pyOpenSSL>=23.0,<25.4',
+    'pyOpenSSL>=23.0,<26.1',
     'mypy>=0.800'
 ]
 dev = [