diff --git a/CMakeLists.txt b/CMakeLists.txt
index d343747..0564484 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.6)
-project(MP4v2 VERSION 2.1.0)
+project(MP4v2 VERSION 2.1.1)
 
 set(CMAKE_CXX_STANDARD 11)
 
diff --git a/doc/texi/ReleaseNotes.texi b/doc/texi/ReleaseNotes.texi
index 1e2cd13..ab8e791 100644
--- a/doc/texi/ReleaseNotes.texi
+++ b/doc/texi/ReleaseNotes.texi
@@ -13,7 +13,7 @@
 @contents
 
 @chapter What's New?
-This is the first release by the new MP4v2 project - see https://mp4v2.org for reference.
+Version 2.1.1 fixes a type mismatch preventing MP4v2 from compiling on 32 bit systems.
 
 Version 2.1 updates the existing build systems and adds support for building with CMake and Xcode. It also fixes compilation
 with newer compilers and integrates smaller improvements and bug fixes from various MP4v2 forks.
diff --git a/project/project.m4sugar b/project/project.m4sugar
index e185bac..de5d2d1 100644
--- a/project/project.m4sugar
+++ b/project/project.m4sugar
@@ -12,5 +12,5 @@ define([PRJ_url_bugreport],  [https://github.com/enzo1982/issues])
 define([PRJ_support],        [support@mp4v2.org])
 define([PRJ_version_major],  [2])
 define([PRJ_version_minor],  [1])
-define([PRJ_version_point],  [0])
+define([PRJ_version_point],  [1])
 define([PRJ_repo_url],       [git@github.com:enzo1982/mp4v2.git])
diff --git a/vstudio/include/mp4v2/project.h b/vstudio/include/mp4v2/project.h
index 232bd16..3969ea7 100644
--- a/vstudio/include/mp4v2/project.h
+++ b/vstudio/include/mp4v2/project.h
@@ -6,19 +6,19 @@
 #define MP4V2_PROJECT_name            "MP4v2"
 #define MP4V2_PROJECT_name_lower      "mp4v2"
 #define MP4V2_PROJECT_name_upper      "MP4V2"
-#define MP4V2_PROJECT_name_formal     "MP4v2 2.1.0"
+#define MP4V2_PROJECT_name_formal     "MP4v2 2.1.1"
 #define MP4V2_PROJECT_url_website     "https://mp4v2.org"
 #define MP4V2_PROJECT_url_downloads   "https://github.com/enzo1982/releases"
 #define MP4V2_PROJECT_url_discussion  "https://github.com/enzo1982/discussions"
 #define MP4V2_PROJECT_url_bugreport   "https://github.com/enzo1982/issues"
 #define MP4V2_PROJECT_support         "<support@mp4v2.org>"
-#define MP4V2_PROJECT_version         "2.1.0"
-#define MP4V2_PROJECT_version_hex     0x00020100
+#define MP4V2_PROJECT_version         "2.1.1"
+#define MP4V2_PROJECT_version_hex     0x00020101
 #define MP4V2_PROJECT_version_major   2
 #define MP4V2_PROJECT_version_minor   1
-#define MP4V2_PROJECT_version_point   0
+#define MP4V2_PROJECT_version_point   1
 #define MP4V2_PROJECT_repo_url        "git@github.com:enzo1982/mp4v2.git"
-#define MP4V2_PROJECT_build           "Sun Jan 30 15:39:29     2022"
+#define MP4V2_PROJECT_build           "Mon Mar 21 23:53:15     2022"
 
 /*****************************************************************************/
 
diff --git a/xcode/include/libplatform/config.h b/xcode/include/libplatform/config.h
index 7cacf33..4292dbb 100644
--- a/xcode/include/libplatform/config.h
+++ b/xcode/include/libplatform/config.h
@@ -55,7 +55,7 @@
 #define PACKAGE_NAME "MP4v2"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "MP4v2 2.1.0"
+#define PACKAGE_STRING "MP4v2 2.1.1"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "mp4v2"
@@ -64,7 +64,7 @@
 #define PACKAGE_URL "https://mp4v2.org"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "2.1.0"
+#define PACKAGE_VERSION "2.1.1"
 
 /* Define to 1 if all of the C90 standard headers exist (not just the ones
    required in a freestanding environment). This macro is provided for
@@ -72,4 +72,4 @@
 #define STDC_HEADERS 1
 
 /* Version number of package */
-#define VERSION "2.1.0"
+#define VERSION "2.1.1"
diff --git a/xcode/include/mp4v2/project.h b/xcode/include/mp4v2/project.h
index 232bd16..3969ea7 100644
--- a/xcode/include/mp4v2/project.h
+++ b/xcode/include/mp4v2/project.h
@@ -6,19 +6,19 @@
 #define MP4V2_PROJECT_name            "MP4v2"
 #define MP4V2_PROJECT_name_lower      "mp4v2"
 #define MP4V2_PROJECT_name_upper      "MP4V2"
-#define MP4V2_PROJECT_name_formal     "MP4v2 2.1.0"
+#define MP4V2_PROJECT_name_formal     "MP4v2 2.1.1"
 #define MP4V2_PROJECT_url_website     "https://mp4v2.org"
 #define MP4V2_PROJECT_url_downloads   "https://github.com/enzo1982/releases"
 #define MP4V2_PROJECT_url_discussion  "https://github.com/enzo1982/discussions"
 #define MP4V2_PROJECT_url_bugreport   "https://github.com/enzo1982/issues"
 #define MP4V2_PROJECT_support         "<support@mp4v2.org>"
-#define MP4V2_PROJECT_version         "2.1.0"
-#define MP4V2_PROJECT_version_hex     0x00020100
+#define MP4V2_PROJECT_version         "2.1.1"
+#define MP4V2_PROJECT_version_hex     0x00020101
 #define MP4V2_PROJECT_version_major   2
 #define MP4V2_PROJECT_version_minor   1
-#define MP4V2_PROJECT_version_point   0
+#define MP4V2_PROJECT_version_point   1
 #define MP4V2_PROJECT_repo_url        "git@github.com:enzo1982/mp4v2.git"
-#define MP4V2_PROJECT_build           "Sun Jan 30 15:39:29     2022"
+#define MP4V2_PROJECT_build           "Mon Mar 21 23:53:15     2022"
 
 /*****************************************************************************/