diff --git a/.appveyor.yml b/.appveyor.yml
index 05211965..45de41da 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,4 +1,4 @@
-version: 2.2-{build}
+version: 2.2.1-{build}
 configuration: Release
 
 image: Visual Studio 2017
diff --git a/.travis.yml b/.travis.yml
index ce4ff5dd..00b21e15 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,7 +32,7 @@ addons:
       project:
          name: mgieseki/dvisvgm
          description: "dvisvgm - A fast DVI to SVG converter"
-         version: 2.2
+         version: 2.2.1
       notification_email: martin.gieseking@uos.de
       build_command_prepend: "./configure; make clean"
       build_command: "make -j"
diff --git a/configure.ac b/configure.ac
index fd285fbd..7c069355 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,8 +4,8 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.59)
-AC_INIT([dvisvgm],[2.2],[martin.gieseking@uos.de])
-DATE="October 2017"
+AC_INIT([dvisvgm],[2.2.1],[martin.gieseking@uos.de])
+DATE="November 2017"
 AC_CONFIG_SRCDIR(src)
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
diff --git a/src/Doxyfile b/src/Doxyfile
index dfc8967c..efe0880f 100644
--- a/src/Doxyfile
+++ b/src/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = dvisvgm
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER = 2.2
+PROJECT_NUMBER = 2.2.1
 
 # 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 a
diff --git a/src/version.hpp b/src/version.hpp
index fdc8bd0e..adbbbf8e 100644
--- a/src/version.hpp
+++ b/src/version.hpp
@@ -22,7 +22,7 @@
 #define VERSION_HPP
 
 constexpr const char *PROGRAM_NAME = "dvisvgm";
-constexpr const char *PROGRAM_VERSION = "2.2";
+constexpr const char *PROGRAM_VERSION = "2.2.1";
 
 #endif