diff --git a/Zend/acinclude.m4 b/Zend/acinclude.m4
index 4f61c7455b68f..77b9bbdeb408e 100644
--- a/Zend/acinclude.m4
+++ b/Zend/acinclude.m4
@@ -4,7 +4,7 @@ dnl This file contains local autoconf functions.
 
 AC_DEFUN([LIBZEND_BISON_CHECK],[
   # we only support certain bison versions
-  bison_version_list="1.28 1.35 1.75 1.875 2.0 2.1 2.2"
+  bison_version_list="1.28 1.35 1.75 1.875 2.0 2.1 2.2 2.3"
 
   # for standalone build of Zend Engine
   test -z "$SED" && SED=sed