diff --git a/CMakeLists.txt b/CMakeLists.txt
index 33a47110..3795d530 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,7 @@ if(POLICY CMP0022)
 endif()
 
 project(libjpeg-turbo C)
-set(VERSION 1.3.90)
+set(VERSION 1.4.0)
 
 if(CYGWIN OR NOT CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
   execute_process(COMMAND "date" "+%Y%m%d" OUTPUT_VARIABLE BUILD)
diff --git a/configure.ac b/configure.ac
index 832e4cfb..369c2e52 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.56])
-AC_INIT([libjpeg-turbo], [1.3.90])
+AC_INIT([libjpeg-turbo], [1.4.0])
 BUILD=`date +%Y%m%d`
 
 AM_INIT_AUTOMAKE([-Wall foreign dist-bzip2])