diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ea76a56..03edb70e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@
 
 ## master (unreleased)
 
+## 0.31.1 (2023-09-03)
+
 ### Bug fixes
 
 * [#256](/~https://github.com/rubocop/rubocop-minitest/issues/256): Fix a false positive for `Minitest/RefuteEqual` when `assert(!expected == actual)`. ([@koic][])
diff --git a/docs/antora.yml b/docs/antora.yml
index 02c36842..54776e57 100644
--- a/docs/antora.yml
+++ b/docs/antora.yml
@@ -2,6 +2,6 @@ name: rubocop-minitest
 title: RuboCop Minitest
 # We always provide version without patch here (e.g. 1.1),
 # as patch versions should not appear in the docs.
-version: ~
+version: '0.31'
 nav:
   - modules/ROOT/nav.adoc
diff --git a/docs/modules/ROOT/pages/cops_minitest.adoc b/docs/modules/ROOT/pages/cops_minitest.adoc
index 886fcb51..08c7248c 100644
--- a/docs/modules/ROOT/pages/cops_minitest.adoc
+++ b/docs/modules/ROOT/pages/cops_minitest.adoc
@@ -1232,7 +1232,6 @@ over `assert(expected != actual)` or `assert(! expected == actual)`.
 ----
 # bad
 assert("rubocop-minitest" != actual)
-assert(! "rubocop-minitest" == actual)
 
 # good
 refute_equal("rubocop-minitest", actual)
diff --git a/lib/rubocop/minitest/version.rb b/lib/rubocop/minitest/version.rb
index 7503fa4a..143ea2e2 100644
--- a/lib/rubocop/minitest/version.rb
+++ b/lib/rubocop/minitest/version.rb
@@ -4,7 +4,7 @@ module RuboCop
   module Minitest
     # This module holds the RuboCop Minitest version information.
     module Version
-      STRING = '0.31.0'
+      STRING = '0.31.1'
 
       def self.document_version
         STRING.match('\d+\.\d+').to_s
diff --git a/relnotes/v0.31.1.md b/relnotes/v0.31.1.md
new file mode 100644
index 00000000..b223a67e
--- /dev/null
+++ b/relnotes/v0.31.1.md
@@ -0,0 +1,5 @@
+### Bug fixes
+
+* [#256](/~https://github.com/rubocop/rubocop-minitest/issues/256): Fix a false positive for `Minitest/RefuteEqual` when `assert(!expected == actual)`. ([@koic][])
+
+[@koic]: /~https://github.com/koic