diff --git a/cairomm.spec b/cairomm.spec
index c1d0e14..c6182cb 100644
--- a/cairomm.spec
+++ b/cairomm.spec
@@ -27,8 +27,6 @@ Standard Template Library where it makes sense.
 Summary:        Headers for developing programs that will use %{name}
 Group:          Development/Libraries
 Requires:       %{name} = %{version}-%{release}
-Requires:       cairo-devel >= %{cairo_version}
-Requires:       libsigc++20-devel >= %{libsigc_version}
 
 %description    devel
 Cairomm is the C++ API for the cairo graphics library. It offers all the power
@@ -88,6 +86,7 @@ find $RPM_BUILD_ROOT -type f -name "*.la" -exec rm -f {} ';'
 %changelog
 * Tue Sep 22 2015 Kalev Lember <klember@redhat.com> - 1.12.0-1
 - Update to 1.12.0
+- Drop manual requires that are automatically handled by pkgconfig dep gen
 
 * Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.10.0-12
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild