diff --git a/packages/elastic_agent/_dev/build/build.yml b/packages/elastic_agent/_dev/build/build.yml
new file mode 100644
index 00000000000..5661d603a89
--- /dev/null
+++ b/packages/elastic_agent/_dev/build/build.yml
@@ -0,0 +1,3 @@
+dependencies:
+  ecs:
+    reference: git@v8.3.0
diff --git a/packages/elastic_agent/changelog.yml b/packages/elastic_agent/changelog.yml
index 0b888481a65..26eb2ae7a7e 100644
--- a/packages/elastic_agent/changelog.yml
+++ b/packages/elastic_agent/changelog.yml
@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "1.3.5"
+  changes:
+    - description: Fix the external ECS fields not being properly resolved during the package build
+      type: bugfix
+      link: https://github.com/elastic/integrations/pull/4007
 - version: "1.3.4"
   changes:
     - description: Cloudbeat logs search support
diff --git a/packages/elastic_agent/manifest.yml b/packages/elastic_agent/manifest.yml
index 4a426de62be..48ab55b4d06 100644
--- a/packages/elastic_agent/manifest.yml
+++ b/packages/elastic_agent/manifest.yml
@@ -1,6 +1,6 @@
 name: elastic_agent
 title: Elastic Agent
-version: 1.3.4
+version: 1.3.5
 release: ga
 description: Collect logs and metrics from Elastic Agents.
 type: integration