diff --git a/configure.ac b/configure.ac
index 2ab7876af02b85e12ce7c30ee2eb4030dc2ed090..bb51298f98aea8baa0f3e192d0af42d41eaefd86 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ AM_CONFIG_HEADER([config.h])
 
 CELT_MAJOR_VERSION=0
 CELT_MINOR_VERSION=5
-CELT_MICRO_VERSION=0
+CELT_MICRO_VERSION=1
 CELT_EXTRA_VERSION=
 CELT_VERSION=$CELT_MAJOR_VERSION.$CELT_MINOR_VERSION.$CELT_MICRO_VERSION$CELT_EXTRA_VERSION
 
diff --git a/libcelt/modes.h b/libcelt/modes.h
index 1126e1a669416cfb6fa0e1a0e8b8fa13ccd4be1a..8aba7c19ad5f269c4dc035b52bb1083d4c6023c1 100644
--- a/libcelt/modes.h
+++ b/libcelt/modes.h
@@ -39,7 +39,7 @@
 #include "psy.h"
 #include "pitch.h"
 
-#define CELT_BITSTREAM_VERSION 0x80000005
+#define CELT_BITSTREAM_VERSION 0x80000006
 
 #ifdef STATIC_MODES
 #include "static_modes.h"