diff --git a/configure.ac b/configure.ac
index 24442465..7af4effc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -119,7 +119,7 @@ AC_SUBST([MAINT])
 
 dnl Checks
 
-PKG_PROG_PKG_CONFIG([0.25])
+PKG_PROG_PKG_CONFIG([0.23])
 AM_CONDITIONAL([HAVE_PKG_CONFIG], [test "x$PKG_CONFIG" != "x"])
 AC_SUBST(HAVE_PKG_CONFIG)