diff --git a/src/version.c b/src/version.c
index 8b47cc2f..5bfcd521 100644
--- a/src/version.c
+++ b/src/version.c
@@ -1 +1 @@
-char *version_string = "GNU Bison version 1.22\n";
+char *version_string = "GNU Bison version 1.23\n";