diff --git a/configure.ac b/configure.ac
index 98327f4..2d6d62b 100755
--- a/configure.ac
+++ b/configure.ac
@@ -467,7 +467,7 @@
 if test "$with_haxe" = "yes";  then
   AC_PATH_PROG([HAXE], [haxe])
   if [[ -x "$HAXE" ]] ; then
-    AX_PROG_HAXE_VERSION( [3.1.3], have_haxe="yes", have_haxe="no")
+    AX_PROG_HAXE_VERSION( [4.2.1], have_haxe="yes", have_haxe="no")
   fi
 fi
 AM_CONDITIONAL(WITH_HAXE, [test "$have_haxe" = "yes"])