diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0fe89f3..0eed857 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+0.13.1 (2024-09-09)
+==================
+
+## Misc
+* Drop base64 dependency. See [#144](https://github.com/simplecov-ruby/simplecov-html/pull/144) (thanks [@Earlopain](https://github.com/Earlopain)).
+
 0.13.0 (2024-09-08)
 ==================
 
diff --git a/lib/simplecov-html/version.rb b/lib/simplecov-html/version.rb
index 2228e37..bc40025 100644
--- a/lib/simplecov-html/version.rb
+++ b/lib/simplecov-html/version.rb
@@ -3,7 +3,7 @@
 module SimpleCov
   module Formatter
     class HTMLFormatter
-      VERSION = "0.13.0"
+      VERSION = "0.13.1"
     end
   end
 end