diff --git a/CHANGELOG.md b/CHANGELOG.md
index e95eb2d9..e5657ab5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.12 (unreleased)
+
+- Add `protocol_type` attribute to `sdwan_zone_based_firewall_policy_definition` resource and data source
+
 ## 0.3.11
 
 - Add workaround for issue when concurrently deleting localized policy objects where the reference count is not updated
diff --git a/docs/guides/changelog.md b/docs/guides/changelog.md
index e14d631f..8ac42555 100644
--- a/docs/guides/changelog.md
+++ b/docs/guides/changelog.md
@@ -7,6 +7,10 @@ description: |-
 
 # Changelog
 
+## 0.3.12 (unreleased)
+
+- Add `protocol_type` attribute to `sdwan_zone_based_firewall_policy_definition` resource and data source
+
 ## 0.3.11
 
 - Add workaround for issue when concurrently deleting localized policy objects where the reference count is not updated
diff --git a/templates/guides/changelog.md.tmpl b/templates/guides/changelog.md.tmpl
index e14d631f..8ac42555 100644
--- a/templates/guides/changelog.md.tmpl
+++ b/templates/guides/changelog.md.tmpl
@@ -7,6 +7,10 @@ description: |-
 
 # Changelog
 
+## 0.3.12 (unreleased)
+
+- Add `protocol_type` attribute to `sdwan_zone_based_firewall_policy_definition` resource and data source
+
 ## 0.3.11
 
 - Add workaround for issue when concurrently deleting localized policy objects where the reference count is not updated