diff --git a/LICENSE b/LICENSE
index b8fb967..2704c49 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2010-2020 The pg-semver Maintainers: David E. Wheeler, Sam
+Copyright (c) 2010-2021 The pg-semver Maintainers: David E. Wheeler, Sam
 Vilain, Tom Davis, and Xavier Caron.
 
 This module is free software; you can redistribute it and/or modify it under
diff --git a/META.json b/META.json
index d98b2ce..5bf12c3 100644
--- a/META.json
+++ b/META.json
@@ -2,7 +2,7 @@
    "name": "semver",
    "abstract": "A semantic version data type",
    "description": "Provides a data type the enforces the Semantic Version format and includes support btree and hash indexing.",
-   "version": "0.31.0",
+   "version": "0.31.1",
    "maintainer": [
       "David E. Wheeler <david@justatheory.com>",
       "Sam Vilain <sam@vilain.net>",
@@ -15,7 +15,7 @@
          "abstract": "A semantic version data type",
          "file": "sql/semver.sql",
          "docfile": "doc/semver.mmd",
-         "version": "0.31.0"
+         "version": "0.31.1"
       }
    },
    "prereqs": {
diff --git a/README.md b/README.md
index b58f3da..105bacf 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-semver 0.31.0
+semver 0.31.1
 =============
 
 [![PGXN version](https://badge.fury.io/pg/semver.svg)](https://badge.fury.io/pg/semver)
@@ -78,7 +78,7 @@ for testing, PL/pgSQL.
 Copyright and License
 ---------------------
 
-Copyright (c) 2010-2020 The pg-semver Maintainers: David E. Wheeler, Sam
+Copyright (c) 2010-2021 The pg-semver Maintainers: David E. Wheeler, Sam
 Vilain, Tom Davis, and Xavier Caron.
 
 This module is free software; you can redistribute it and/or modify it under
diff --git a/doc/semver.mmd b/doc/semver.mmd
index c6bcc2a..f8b98c7 100644
--- a/doc/semver.mmd
+++ b/doc/semver.mmd
@@ -1,4 +1,4 @@
-semver 0.31.0
+semver 0.31.1
 =============
 
 Synopsis
@@ -346,7 +346,7 @@ Authors
 Copyright and License
 ---------------------
 
-Copyright (c) 2010-2020 The pg-semver Maintainers: David E. Wheeler, Sam
+Copyright (c) 2010-2021 The pg-semver Maintainers: David E. Wheeler, Sam
 Vilain, Tom Davis, and Xavier Caron.
 
 This module is free software; you can redistribute it and/or modify it under
diff --git a/semver.control b/semver.control
index d60ed57..a36f220 100644
--- a/semver.control
+++ b/semver.control
@@ -1,5 +1,5 @@
 # semver extension
 comment = 'Semantic version data type'
-default_version = '0.31.0'
+default_version = '0.31.1'
 module_pathname = '$libdir/semver'
 relocatable = true
diff --git a/sql/semver--0.31.0--0.31.1.sql b/sql/semver--0.31.0--0.31.1.sql
new file mode 100644
index 0000000..db31038
--- /dev/null
+++ b/sql/semver--0.31.0--0.31.1.sql
@@ -0,0 +1 @@
+-- C source code changes only; No SQL changes.
diff --git a/src/semver.c b/src/semver.c
index e734a1f..1d96ae6 100644
--- a/src/semver.c
+++ b/src/semver.c
@@ -6,7 +6,7 @@
  * + Tom Davis <tom@recursivedream.com>
  * + Xavier Caron <xcaron@gmail.com>
  *
- * Copyright 2010-2020 The pg-semver Maintainers. This program is Free
+ * Copyright 2010-2021 The pg-semver Maintainers. This program is Free
  * Software; see the LICENSE file for the license conditions.
  */