diff --git a/libmatroska.spec b/libmatroska.spec
index 537b9cb..5245ec1 100644
--- a/libmatroska.spec
+++ b/libmatroska.spec
@@ -5,11 +5,11 @@ Release:	2
 License:	LGPL
 Group:		Development/Libraries
 URL:		http://matroska.org/
-Source0:	http://dl.matroska.org/downloads/libmatroska/libmatroska-0.7.3.tar.bz2
+Source0:	http://dl.matroska.org/downloads/libmatroska/libmatroska-%{version}.tar.bz2
 Provides:	%{name}-devel = %{version}-%{release}
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-buildroot-%(%{__id_u} -n)
-BuildRequires:	libebml-devel
-Requires:	libebml-devel
+BuildRequires:	libebml-devel >= 0.7.2
+Requires:	libebml-devel >= 0.7.2
 
 %description
 An extensible open standard Audio/Video container format Matroska is
diff --git a/sources b/sources
index 0872af9..f65d1f9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-d3248068de3f34739de8ff81a6651162  libmatroska-0.7.3.tar.bz2
+a91b7a30141122edb02f9e42bbae69d9  libmatroska-0.7.4.tar.bz2