diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ff846568f927..dd28ed20f8e8 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -285,7 +285,7 @@
   "google-cloud-errors+FILLER": "0.0.0",
   "google-cloud-essential_contacts": "1.2.0",
   "google-cloud-essential_contacts+FILLER": "0.0.0",
-  "google-cloud-essential_contacts-v1": "0.3.0",
+  "google-cloud-essential_contacts-v1": "0.4.0",
   "google-cloud-essential_contacts-v1+FILLER": "0.0.0",
   "google-cloud-eventarc": "1.2.0",
   "google-cloud-eventarc+FILLER": "0.0.0",
diff --git a/google-cloud-essential_contacts-v1/CHANGELOG.md b/google-cloud-essential_contacts-v1/CHANGELOG.md
index d8dd650e97ff..f0fdc5888faf 100644
--- a/google-cloud-essential_contacts-v1/CHANGELOG.md
+++ b/google-cloud-essential_contacts-v1/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+### 0.4.0 (2023-06-06)
+
+#### Features
+
+* Uses binary protobuf definitions for better forward compatibility ([#21674](https://github.com/googleapis/google-cloud-ruby/issues/21674)) 
+#### Bug Fixes
+
+* Don't use self-signed JWT credentials if the global configuration endpoint has been modified 
+
 ### 0.3.0 (2023-03-08)
 
 #### Features
diff --git a/google-cloud-essential_contacts-v1/lib/google/cloud/essential_contacts/v1/version.rb b/google-cloud-essential_contacts-v1/lib/google/cloud/essential_contacts/v1/version.rb
index c114e7c3d78a..3415b3ce7f58 100644
--- a/google-cloud-essential_contacts-v1/lib/google/cloud/essential_contacts/v1/version.rb
+++ b/google-cloud-essential_contacts-v1/lib/google/cloud/essential_contacts/v1/version.rb
@@ -21,7 +21,7 @@ module Google
   module Cloud
     module EssentialContacts
       module V1
-        VERSION = "0.3.0"
+        VERSION = "0.4.0"
       end
     end
   end
diff --git a/google-cloud-essential_contacts-v1/snippets/snippet_metadata_google.cloud.essentialcontacts.v1.json b/google-cloud-essential_contacts-v1/snippets/snippet_metadata_google.cloud.essentialcontacts.v1.json
index d772a46fce69..22687941ac54 100644
--- a/google-cloud-essential_contacts-v1/snippets/snippet_metadata_google.cloud.essentialcontacts.v1.json
+++ b/google-cloud-essential_contacts-v1/snippets/snippet_metadata_google.cloud.essentialcontacts.v1.json
@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-essential_contacts-v1",
-    "version": "0.3.0",
+    "version": "0.4.0",
     "language": "RUBY",
     "apis": [
       {