diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 37b17fdb7f02..466f18f469fb 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1009,7 +1009,7 @@
   "google-shopping-merchant-order_tracking-v1+FILLER": "0.0.0",
   "google-shopping-merchant-order_tracking-v1beta": "0.2.1",
   "google-shopping-merchant-order_tracking-v1beta+FILLER": "0.0.0",
-  "google-shopping-merchant-products": "0.3.0",
+  "google-shopping-merchant-products": "0.4.0",
   "google-shopping-merchant-products+FILLER": "0.0.0",
   "google-shopping-merchant-products-v1": "0.4.1",
   "google-shopping-merchant-products-v1+FILLER": "0.0.0",
diff --git a/google-shopping-merchant-products/CHANGELOG.md b/google-shopping-merchant-products/CHANGELOG.md
index 5d00aa9e6a28..4f4d9ac40f83 100644
--- a/google-shopping-merchant-products/CHANGELOG.md
+++ b/google-shopping-merchant-products/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 0.4.0 (2026-03-31)
+
+#### Features
+
+* Upgrade dependencies for Ruby v4.0 and drop Ruby v3.1 support
+
 ### 0.3.0 (2025-11-21)
 
 #### Features
diff --git a/google-shopping-merchant-products/lib/google/shopping/merchant/products/version.rb b/google-shopping-merchant-products/lib/google/shopping/merchant/products/version.rb
index 4baf1f105dd6..6a1ec78f3abd 100644
--- a/google-shopping-merchant-products/lib/google/shopping/merchant/products/version.rb
+++ b/google-shopping-merchant-products/lib/google/shopping/merchant/products/version.rb
@@ -21,7 +21,7 @@ module Google
   module Shopping
     module Merchant
       module Products
-        VERSION = "0.3.0"
+        VERSION = "0.4.0"
       end
     end
   end