diff --git a/evolution-ews.spec b/evolution-ews.spec
index a8fbb71..08e7e93 100644
--- a/evolution-ews.spec
+++ b/evolution-ews.spec
@@ -9,6 +9,9 @@ License: LGPLv2
 URL: http://projects.gnome.org/evolution
 Source: http://download.gnome.org/sources/%{name}/3.5/%{name}-%{version}.tar.xz
 
+Requires: evolution >= %{version}
+Requires: evolution-data-server >= %{version}
+
 BuildRequires: evolution-devel >= %{version}
 BuildRequires: evolution-data-server-devel >= %{version}
 BuildRequires: intltool