diff --git a/CMakeLists.txt b/CMakeLists.txt
index f88b0ded..655ae174 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ cmake_minimum_required(VERSION 3.16)
 # the project line. When updating the version, check make_dist for all
 # the places it has to be updated.
 project(qpdf
-  VERSION 11.3.0
+  VERSION 11.3.1
   LANGUAGES C CXX)
 
 # Enable correct rpath handling for MacOSX
diff --git a/include/qpdf/DLL.h b/include/qpdf/DLL.h
index e3beace6..f6e17740 100644
--- a/include/qpdf/DLL.h
+++ b/include/qpdf/DLL.h
@@ -26,8 +26,8 @@
 /* The first version of qpdf to include the version constants is 10.6.0. */
 #define QPDF_MAJOR_VERSION 11
 #define QPDF_MINOR_VERSION 3
-#define QPDF_PATCH_VERSION 0
-#define QPDF_VERSION "11.3.0"
+#define QPDF_PATCH_VERSION 1
+#define QPDF_VERSION "11.3.1"
 
 /*
  * This file defines symbols that control the which functions,
diff --git a/manual/conf.py b/manual/conf.py
index 0f69dd90..3597ebbe 100644
--- a/manual/conf.py
+++ b/manual/conf.py
@@ -16,7 +16,7 @@ project = 'QPDF'
 copyright = '2005-2023, Jay Berkenbilt'
 author = 'Jay Berkenbilt'
 # make_dist and the CI build lexically find the release version from this file.
-release = '11.3.0'
+release = '11.3.1'
 version = release
 extensions = [
     'sphinx_rtd_theme',