diff --git a/python-autobahn.spec b/python-autobahn.spec
index ce3291d..6ae84a1 100644
--- a/python-autobahn.spec
+++ b/python-autobahn.spec
@@ -25,6 +25,7 @@ License:        MIT
 Group:          Development/Languages/Python
 URL:            https://github.com/crossbario/autobahn-python
 Source:         https://files.pythonhosted.org/packages/source/a/autobahn/autobahn-%{version}.tar.gz
+BuildRequires:  %{python_module PyNaCl >= 1.0.1}
 BuildRequires:  %{python_module Twisted >= 12.1.0}
 BuildRequires:  %{python_module argon2_cffi >= 18.1.0}
 BuildRequires:  %{python_module cbor >= 1.0.0}
@@ -36,8 +37,7 @@ BuildRequires:  %{python_module mock >= 1.3.0}
 BuildRequires:  %{python_module msgpack >= 0.6.1}
 BuildRequires:  %{python_module passlib >= 1.7.1}
 BuildRequires:  %{python_module py-ubjson >= 0.8.4}
-BuildRequires:  %{python_module pynacl >= 1.0.1}
-BuildRequires:  %{python_module pyopenssl >= 16.2.0}
+BuildRequires:  %{python_module pyOpenSSL >= 16.2.0}
 BuildRequires:  %{python_module pyqrcode >= 1.1}
 BuildRequires:  %{python_module pytest >= 2.8.6}
 BuildRequires:  %{python_module pytrie >= 0.2}
@@ -54,6 +54,7 @@ BuildRequires:  python-rpm-macros
 BuildRequires:  python2-trollius
 BuildRequires:  python3-pytest-aiohttp
 BuildRequires:  python3-pytest-asyncio
+Requires:       python-PyNaCl >= 1.0.1}
 Requires:       python-Twisted >= 12.1.0
 Requires:       python-argon2_cffi >= 18.1.0
 Requires:       python-cbor >= 1.0.0
@@ -64,8 +65,7 @@ Requires:       python-lz4 >= 0.7.0
 Requires:       python-msgpack >= 0.6.1
 Requires:       python-passlib >= 1.7.1
 Requires:       python-py-ubjson >= 0.8.4
-Requires:       python-pynacl >= 1.0.1}
-Requires:       python-pyopenssl >= 16.2.0
+Requires:       python-pyOpenSSL >= 16.2.0
 Requires:       python-pyqrcode >= 1.1
 Requires:       python-pytrie >= 0.2
 Requires:       python-service_identity >= 16.0.0