diff --git a/common b/common
index b7abb510aa..e903f88a73 160000
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit b7abb510aa14e8692df39ea8c2c758e37d8a8d8a
+Subproject commit e903f88a7388f0b463204ea1f960a4ace840175b
diff --git a/configure.ac b/configure.ac
index 866fcf188c..9172fb9cd9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 -*- mode: m4 -*-
-AC_PREREQ(2.54)
+AC_PREREQ(2.57)
 AC_INIT
 AC_CANONICAL_TARGET
 
@@ -13,7 +13,7 @@ dnl Add parameters for aclocal
 ACLOCAL="$ACLOCAL -I common/m4 $ACLOCAL_FLAGS"
 
 dnl required versions of other packages
-AC_SUBST(PYGTK_REQ, 1.99.14)
+AC_SUBST(PYGTK_REQ, 2.0.0)
 AC_SUBST(GLIB_REQ,  2.0.0)
 AC_SUBST(GTK_REQ,   2.0.0)
 AC_SUBST(GST_REQ,   0.6.0)