diff --git a/ChangeLog b/ChangeLog
index b61650cacc..38614b3229 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-12-16  Stefan Kost  <ensonic@users.sf.net>
+
+	* configure.ac:
+	  Require core cvs.
+
 2008-12-16  Stefan Kost  <ensonic@users.sf.net>
 
 	* ext/ffmpeg/gstffmpegmux.c:
diff --git a/configure.ac b/configure.ac
index b7dc9b1328..d6487f0fcf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,7 +40,7 @@ AC_LIBTOOL_WIN32_DLL
 AM_PROG_LIBTOOL
 
 dnl *** required versions of GStreamer stuff ***
-GST_REQ=0.10.21
+GST_REQ=0.10.21.1
 LIBOIL_MAJORMINOR=0.3
 LIBOIL_REQ=0.3.6