diff --git a/configure.ac b/configure.ac
index 26aa8c5c..65a47eac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,9 +22,9 @@ AC_CONFIG_MACRO_DIR([m4])
 AC_SUBST(VER_LIBSOFIA_SIP_UA_MAJOR_MINOR, [1.13])
 dnl Includedir specific to this sofia version
 AC_SUBST(include_sofiadir, '${includedir}/sofia-sip-1.13')
-AC_SUBST(LIBVER_SOFIA_SIP_UA_CUR, [4])
+AC_SUBST(LIBVER_SOFIA_SIP_UA_CUR, [6])
 AC_SUBST(LIBVER_SOFIA_SIP_UA_REV, [0])
-AC_SUBST(LIBVER_SOFIA_SIP_UA_AGE, [4])
+AC_SUBST(LIBVER_SOFIA_SIP_UA_AGE, [6])
 AC_SUBST(LIBVER_SOFIA_SIP_UA_SOVER, [0]) # CUR-AGE
 AC_SUBST(LIBVER_SOFIA_SIP_UA_GLIB_CUR, [3])
 AC_SUBST(LIBVER_SOFIA_SIP_UA_GLIB_REV, [0])