diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 59558ab19b5a..7625c3e3c44b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -143,7 +143,7 @@
   "google-cloud-beyond_corp-app_gateways-v1+FILLER": "0.0.0",
   "google-cloud-beyond_corp-client_gateways-v1": "0.12.0",
   "google-cloud-beyond_corp-client_gateways-v1+FILLER": "0.0.0",
-  "google-cloud-bigquery": "1.63.1",
+  "google-cloud-bigquery": "1.64.0",
   "google-cloud-bigquery+FILLER": "0.0.0",
   "google-cloud-bigquery-analytics_hub": "1.4.0",
   "google-cloud-bigquery-analytics_hub+FILLER": "0.0.0",
diff --git a/google-cloud-bigquery/CHANGELOG.md b/google-cloud-bigquery/CHANGELOG.md
index 3c037c82bec4..351a9c0ca41d 100644
--- a/google-cloud-bigquery/CHANGELOG.md
+++ b/google-cloud-bigquery/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Release History
 
+### 1.64.0 (2026-05-11)
+
+#### Features
+
+* Support bigdecimal 4.x ([#33930](https://github.com/googleapis/google-cloud-ruby/issues/33930)) 
+
 ### 1.63.1 (2026-05-05)
 
 #### Bug Fixes
diff --git a/google-cloud-bigquery/lib/google/cloud/bigquery/version.rb b/google-cloud-bigquery/lib/google/cloud/bigquery/version.rb
index ba1e7978bb13..daec5a9ad270 100644
--- a/google-cloud-bigquery/lib/google/cloud/bigquery/version.rb
+++ b/google-cloud-bigquery/lib/google/cloud/bigquery/version.rb
@@ -16,7 +16,7 @@
 module Google
   module Cloud
     module Bigquery
-      VERSION = "1.63.1".freeze
+      VERSION = "1.64.0".freeze
     end
   end
 end