diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf9e052d5b..9e6087d475 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ and this project adheres to
 
 ## [Unreleased]
 
+## Fixed
+
+- 🐛(helm) charts generate invalid YAML for collaboration API / WS #890
+
 ## [3.4.2] - 2025-07-18
 
 ### Changed
@@ -141,7 +145,6 @@ and this project adheres to
 - 🐛(backend) race condition create doc #633
 - 🐛(frontend) fix breaklines in custom blocks #908
 
-
 ## [3.1.0] - 2025-04-07
 
 ## Added
diff --git a/src/helm/impress/templates/ingress_collaboration_api.yaml b/src/helm/impress/templates/ingress_collaboration_api.yaml
index f4dc92ef88..30d6327915 100644
--- a/src/helm/impress/templates/ingress_collaboration_api.yaml
+++ b/src/helm/impress/templates/ingress_collaboration_api.yaml
@@ -51,10 +51,6 @@ spec:
             pathType: ImplementationSpecific
             {{- end }}
             backend:
-              service:
-                name: {{ include "impress.yProvider.fullname" . }}
-                port:
-                  number: {{ .Values.yProvider.service.port }}
               {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
               service:
                 name: {{ include "impress.yProvider.fullname" . }}
diff --git a/src/helm/impress/templates/ingress_collaboration_ws.yaml b/src/helm/impress/templates/ingress_collaboration_ws.yaml
index 6bd4325e10..887f74dd71 100644
--- a/src/helm/impress/templates/ingress_collaboration_ws.yaml
+++ b/src/helm/impress/templates/ingress_collaboration_ws.yaml
@@ -51,10 +51,6 @@ spec:
             pathType: ImplementationSpecific
             {{- end }}
             backend:
-              service:
-                name: {{ include "impress.yProvider.fullname" . }}
-                port:
-                  number: {{ .Values.yProvider.service.port }}
               {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
               service:
                 name: {{ include "impress.yProvider.fullname" . }}