diff --git a/configure.in b/configure.in
index b5fb6f03..c0cb9671 100644
--- a/configure.in
+++ b/configure.in
@@ -1,5 +1,5 @@
 dnl Init.
-AC_INIT(dosbox,0.50)
+AC_INIT(dosbox,0.55)
 AC_CONFIG_SRCDIR(README)
 
 dnl Detect the canonical host and target build environment