diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2aa7daea37..2925471f50 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ if(NOT (CMAKE_BUILD_TYPE OR CMAKE_CONFIGURATION_TYPES OR DEFINED ENV{CFLAGS} OR
     set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo")
 endif()
 
-project(FLAC VERSION 1.3.4) # HOMEPAGE_URL "https://www.xiph.org/flac/")
+project(FLAC VERSION 1.4.0) # HOMEPAGE_URL "https://www.xiph.org/flac/")
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
diff --git a/configure.ac b/configure.ac
index 2ef1f92538..8af0e90912 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@
 # instead of FLAC__ since autoconf triggers off 'AC_' in strings
 
 AC_PREREQ(2.60)
-AC_INIT([flac],[1.3.4],[flac-dev@xiph.org],[flac],[https://www.xiph.org/flac/])
+AC_INIT([flac],[1.4.0],[flac-dev@xiph.org],[flac],[https://www.xiph.org/flac/])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([src/flac/main.c])
 AC_CONFIG_MACRO_DIR([m4])
diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
index 7f08673dae..8a1a159e5b 100644
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -32,7 +32,7 @@ PROJECT_NAME           = FLAC
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = 1.3.4
+PROJECT_NUMBER         = 1.4.0
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer
diff --git a/man/flac.md b/man/flac.md
index 71e7993bbd..f7ca752d60 100644
--- a/man/flac.md
+++ b/man/flac.md
@@ -1,4 +1,4 @@
-% flac(1) Version 1.3.4 | Free Lossless Audio Codec conversion tool
+% flac(1) Version 1.4.0 | Free Lossless Audio Codec conversion tool
 
 # NAME
 
diff --git a/man/metaflac.md b/man/metaflac.md
index f473c90f92..5ea0f57611 100644
--- a/man/metaflac.md
+++ b/man/metaflac.md
@@ -1,4 +1,4 @@
-% metaflac(1) Version 1.3.4 | Free Lossless Audio Codec metadata tool
+% metaflac(1) Version 1.4.0 | Free Lossless Audio Codec metadata tool
 
 # NAME
 
diff --git a/src/libFLAC/format.c b/src/libFLAC/format.c
index 5a0ebb6c42..2729f97959 100644
--- a/src/libFLAC/format.c
+++ b/src/libFLAC/format.c
@@ -55,7 +55,7 @@ FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC git-" GIT_COMMIT_H
 #else
 /* PACKAGE_VERSION should come from configure */
 FLAC_API const char *FLAC__VERSION_STRING = PACKAGE_VERSION;
-FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " PACKAGE_VERSION " 20220220";
+FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " PACKAGE_VERSION " 20220909";
 #endif
 
 FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4] = { 'f','L','a','C' };
diff --git a/test/metaflac-test-files/case07-expect.meta b/test/metaflac-test-files/case07-expect.meta
index e71960ec4d..b798d2b2e0 100644
--- a/test/metaflac-test-files/case07-expect.meta
+++ b/test/metaflac-test-files/case07-expect.meta
@@ -1,4 +1,4 @@
-reference libFLAC 1.3.4 20220220
+reference libFLAC 1.4.0 20220909
 ARTIST=The_artist_formerly_known_as_the_artist...
 ARTIST=Chuck_Woolery
 ARTIST=Vern