diff --git a/.github/SECURITY.md b/.github/SECURITY.md
index eb8682b..e2474fb 100644
--- a/.github/SECURITY.md
+++ b/.github/SECURITY.md
@@ -4,13 +4,13 @@
 
 The following versions of `ergebnis/version` have active support:
 
-- `^1.1.0`
+- `^1.2.0`
 
 ## Unsupported Versions
 
 The following versions of `ergebnis/version` have reached their end of life:
 
-- `<1.1.0`
+- `<1.2.0`
 
 ## Reporting a Vulnerability
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71a8aaf..5d8a77a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Unreleased
 
-For a full diff see [`1.1.0...main`][1.1.0...main].
+For a full diff see [`1.2.0...main`][1.2.0...main].
+
+## [`1.2.0`][1.2.0]
+
+For a full diff see [`1.1.0...1.2.0`][1.1.0...1.2.0].
 
 ### Added
 
@@ -36,10 +40,12 @@ For a full diff see [`64ced12...1.0.0`][64ced12...1.0.0].
 
 [1.0.0]: https://github.com/ergebnis/version/releases/tag/1.0.0
 [1.1.0]: https://github.com/ergebnis/version/releases/tag/1.1.0
+[1.2.0]: https://github.com/ergebnis/version/releases/tag/1.2.0
 
 [64ced12...1.0.0]: https://github.com/ergebnis/version/compare/64ced12...1.0.0
 [1.0.0...1.1.0]: https://github.com/ergebnis/version/compare/1.0.0...1.1.0
-[1.1.0...main]: https://github.com/ergebnis/version/compare/1.1.0...main
+[1.1.0...1.2.0]: https://github.com/ergebnis/version/compare/1.1.0...1.2.0
+[1.2.0...main]: https://github.com/ergebnis/version/compare/1.2.0...main
 
 [#1]: https://github.com/ergebnis/version/pull/1
 [#3]: https://github.com/ergebnis/version/pull/3
diff --git a/composer.json b/composer.json
index 4f18db1..533b102 100644
--- a/composer.json
+++ b/composer.json
@@ -71,7 +71,7 @@
   },
   "extra": {
     "branch-alias": {
-      "dev-main": "1.1-dev"
+      "dev-main": "1.2-dev"
     },
     "composer-normalize": {
       "indent-size": 2,
diff --git a/composer.lock b/composer.lock
index 1a42950..f50c31f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "661eecabc0a5567517188edc15577ac5",
+    "content-hash": "832690cc2fff33d9e6e6c92259d9efa8",
     "packages": [],
     "packages-dev": [
         {