diff --git a/CHANGELOG.md b/CHANGELOG.md
index 272ea9b..e68fec7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 <!-- This file is generated, please add to it using `knope document-change` in the client-library-templates repo -->
 # Changelog
 
+## 4.6.4 (2026-09-08)
+
+### Fixes
+
+#### Remove incorrect Pro/Enterprise restriction from mandate and customer bank account endpoints
+
+The "Create a mandate", "Reinstate a mandate", and "Create a customer bank account" endpoints incorrectly stated they were restricted to GoCardless Pro and Enterprise accounts. Custom payment pages are available to any merchant — they are not package-restricted.
+
 ## 4.6.3 (2026-09-07)
 
 ### Fixes
diff --git a/lib/gocardless_pro/client.rb b/lib/gocardless_pro/client.rb
index 1278fd9..cc0c14c 100644
--- a/lib/gocardless_pro/client.rb
+++ b/lib/gocardless_pro/client.rb
@@ -283,7 +283,7 @@ def default_options
           'User-Agent' => "#{user_agent}",
           'Content-Type' => 'application/json',
           'GoCardless-Client-Library' => 'gocardless-pro-ruby',
-          'GoCardless-Client-Version' => '4.6.3',
+          'GoCardless-Client-Version' => '4.6.4',
         },
       }
     end
diff --git a/lib/gocardless_pro/version.rb b/lib/gocardless_pro/version.rb
index 425e1d7..8becb16 100644
--- a/lib/gocardless_pro/version.rb
+++ b/lib/gocardless_pro/version.rb
@@ -3,5 +3,5 @@ module GoCardlessPro
 
 module GoCardlessPro
   # Current version of the GC gem
-  VERSION = '4.6.3'
+  VERSION = '4.6.4'
 end