diff --git a/python-oauthlib.spec b/python-oauthlib.spec
index d8bf33c..be0ed10 100644
--- a/python-oauthlib.spec
+++ b/python-oauthlib.spec
@@ -24,10 +24,6 @@ Summary:            %{summary}
 BuildRequires:      python3-devel
 BuildRequires:      python3-pytest
 
-BuildRequires:      %{py3_dist blinker}
-BuildRequires:      python3-jwt
-BuildRequires:      %{py3_dist cryptography}
-
 %description -n python3-oauthlib
 OAuthLib is a generic utility which implements the logic of OAuth without
 assuming a specific HTTP request object or web framework. Use it to graft
@@ -36,11 +32,13 @@ onto your favourite web framework. If you're a maintainer of such a
 library, write a thin veneer on top of OAuthLib and get OAuth support for
 very little effort.
 
+%pyproject_extras_subpkg -n python3-oauthlib rsa,signedtoken,signals
+
 %prep
 %autosetup -n oauthlib-%{version} -p1
 
 %generate_buildrequires
-%pyproject_buildrequires
+%pyproject_buildrequires -x rsa,signedtoken,signals
 
 %build
 %pyproject_wheel