diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ AC_PROG_LIBTOOL
 
 AM_INIT_AUTOMAKE
 AM_PROG_CC_C_O
-AM_PATH_XML2(2.7.2)
+AM_PATH_XML2(2.6.26)
 
 #basic low-level checks (suggested by autoscan)
 AC_CHECK_FUNCS([dup2])
@@ -45,7 +45,7 @@ AC_TYPE_SIZE_T
 
 PKG_PROG_PKG_CONFIG(0.17.2)
 
-PKG_CHECK_MODULES(DISTLIBS, libconfuse >= 2.6 libcurl libxml-2.0)
+PKG_CHECK_MODULES(DISTLIBS, libconfuse >= 2.5 libcurl libxml-2.0)
 PKG_CHECK_MODULES([CHECK], [check >= 0.9.4])
 
 AC_DEFINE_DIR([SYSCONFDIR], [sysconfdir], [Directory to find configuration files in])