diff --git a/.gitignore b/.gitignore
index c33d74a..327a08f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ evolution-data-server-2.31.5.tar.bz2
 /evolution-data-server-3.1.4.tar.bz2
 /evolution-data-server-3.1.5.tar.bz2
 /evolution-data-server-3.1.90.tar.xz
+/evolution-data-server-3.1.91.tar.xz
diff --git a/evolution-data-server.spec b/evolution-data-server.spec
index c9264c3..2b91780 100644
--- a/evolution-data-server.spec
+++ b/evolution-data-server.spec
@@ -24,7 +24,7 @@
 ### Abstract ###
 
 Name: evolution-data-server
-Version: 3.1.90
+Version: 3.1.91
 Release: 1%{?dist}
 Group: System Environment/Libraries
 Summary: Backend data server for Evolution
@@ -65,6 +65,8 @@ BuildRequires: libtool
 BuildRequires: nspr-devel
 BuildRequires: nss-devel
 BuildRequires: sqlite-devel >= %{sqlite_version}
+BuildRequires: vala
+BuildRequires: vala-tools
 
 %if %{ldap_support}
 %if %{static_ldap}
@@ -194,6 +196,8 @@ autoconf
 	--enable-file-locking=fcntl \
 	--enable-dot-locking=no \
 	--enable-gtk-doc \
+	--enable-introspection=yes \
+	--enable-vala-bindings \
 	%ldap_flags %krb5_flags %nntp_flags %ssl_flags \
 	%largetfile_flags
 export tagname=CC
@@ -320,6 +324,11 @@ rm -rf $RPM_BUILD_ROOT
 %{_datadir}/gir-1.0/EBook-1.2.gir
 %{_datadir}/gir-1.0/ECalendar-1.2.gir
 %{_datadir}/gir-1.0/EDataServer-1.2.gir
+%{_datadir}/vala/vapi/libebook-1.2.deps
+%{_datadir}/vala/vapi/libebook-1.2.vapi
+%{_datadir}/vala/vapi/libecalendar-1.2.deps
+%{_datadir}/vala/vapi/libecalendar-1.2.vapi
+%{_datadir}/vala/vapi/libedataserver-1.2.vapi
 
 %files doc
 %defattr(-,root,root,-)
@@ -333,6 +342,10 @@ rm -rf $RPM_BUILD_ROOT
 %{_datadir}/gtk-doc/html/libedataserverui
 
 %changelog
+* Mon Sep 05 2011 Milan Crha <mcrha@redhat.com> - 3.1.91-1
+- Update to 3.1.91
+- Enable introspection and vala bindings
+
 * Mon Aug 29 2011 Milan Crha <mcrha@redhat.com> - 3.1.90-1
 - Update to 3.1.90
 
diff --git a/sources b/sources
index 04c8a24..901d3c4 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-ae185aa6bca6b3f2689f2aecef56cd07  evolution-data-server-3.1.90.tar.xz
+7524a514b679d8479819356ae38a5702  evolution-data-server-3.1.91.tar.xz