diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80b1b1e..a3d3d1c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 # libaec Changelog
 All notable changes to libaec will be documented in this file.
 
+## [1.0.3] - 2019-02-04
+
+### Changed
+- Improvements to testing and fuzzing by Kurt Schwehr
+
+### Fixed
+- Various ubsan issues
+
 ## [1.0.2] - 2017-10-18
 
 ### Fixed
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ee76ab8..e4c9b4f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ endif(AEC_FUZZING)
 
 set(libaec_VERSION_MAJOR 1)
 set(libaec_VERSION_MINOR 0)
-set(libaec_VERSION_PATCH 2)
+set(libaec_VERSION_PATCH 3)
 set(CMAKE_BUILD_TYPE Release)
 enable_testing()
 
diff --git a/configure.ac b/configure.ac
index e958719..86689cd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ([2.64])
-AC_INIT([libaec], [1.0.2], [rosenhauer@dkrz.de])
+AC_INIT([libaec], [1.0.3], [rosenhauer@dkrz.de])
 
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([config])
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 93c681b..3eaf4b5 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,5 +1,5 @@
 add_library(aec ${LIB_TYPE} ${libaec_SRCS})
-set_target_properties(aec PROPERTIES VERSION 0.0.8 SOVERSION 0)
+set_target_properties(aec PROPERTIES VERSION 0.0.9 SOVERSION 0)
 add_library(sz ${LIB_TYPE} sz_compat.c)
 set_target_properties(sz PROPERTIES VERSION 2.0.1 SOVERSION 2)
 
diff --git a/src/Makefile.am b/src/Makefile.am
index de81372..7950921 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3,7 +3,7 @@ AM_CPPFLAGS = -DBUILDING_LIBAEC
 lib_LTLIBRARIES = libaec.la libsz.la
 libaec_la_SOURCES = encode.c encode_accessors.c decode.c \
 encode.h encode_accessors.h decode.h
-libaec_la_LDFLAGS = -version-info 0:8:0 -no-undefined
+libaec_la_LDFLAGS = -version-info 0:9:0 -no-undefined
 
 libsz_la_SOURCES = sz_compat.c
 libsz_la_LIBADD = libaec.la