diff --git a/CHANGELOG b/CHANGELOG
index ebd3ec5..1045d4d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,12 @@
+
+Changes in Rubber Band v1.8.1
+
+ * Fix a crash in formant-preserving pitch shift for some build targets
+
+The API is unchanged and the library is binary compatible with
+version 1.7.
+
+
 Changes in Rubber Band v1.8
 
  * Add build support for Win32/MSVC, Android, and various libraries
diff --git a/configure.ac b/configure.ac
index 79c6d9a..1339294 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 
-AC_INIT(RubberBand, 1.8, chris.cannam@breakfastquay.com)
+AC_INIT(RubberBand, 1.8.1, chris.cannam@breakfastquay.com)
 
 AC_CONFIG_SRCDIR(src/StretcherImpl.h)
 AC_PROG_CXX
diff --git a/rubberband.pc.in b/rubberband.pc.in
index bab4799..a4ebe30 100644
--- a/rubberband.pc.in
+++ b/rubberband.pc.in
@@ -4,7 +4,7 @@ libdir=${exec_prefix}/lib
 includedir=${prefix}/include
 
 Name: rubberband
-Version: 1.4.0
+Version: 1.8.1
 Description: 
 Libs: -L${libdir} -lrubberband
 Cflags: -I${includedir} 
diff --git a/rubberband/RubberBandStretcher.h b/rubberband/RubberBandStretcher.h
index c5ad69d..f654cda 100644
--- a/rubberband/RubberBandStretcher.h
+++ b/rubberband/RubberBandStretcher.h
@@ -24,7 +24,7 @@
 #ifndef _RUBBERBANDSTRETCHER_H_
 #define _RUBBERBANDSTRETCHER_H_
     
-#define RUBBERBAND_VERSION "1.8"
+#define RUBBERBAND_VERSION "1.8.1"
 #define RUBBERBAND_API_MAJOR_VERSION 2
 #define RUBBERBAND_API_MINOR_VERSION 5
 
diff --git a/rubberband/rubberband-c.h b/rubberband/rubberband-c.h
index df3c906..438b561 100644
--- a/rubberband/rubberband-c.h
+++ b/rubberband/rubberband-c.h
@@ -28,7 +28,7 @@
 extern "C" {
 #endif
 
-#define RUBBERBAND_VERSION "1.8"
+#define RUBBERBAND_VERSION "1.8.1"
 #define RUBBERBAND_API_MAJOR_VERSION 2
 #define RUBBERBAND_API_MINOR_VERSION 5