diff --git a/helm/gitea-registry-values.yaml b/helm/gitea-registry-values.yaml
index 23596f4..13b9778 100644
--- a/helm/gitea-registry-values.yaml
+++ b/helm/gitea-registry-values.yaml
@@ -10,8 +10,15 @@ gitea:
   config:
     packages:
       ENABLED: true
-      LIMIT_SIZE_CONTAINER: -1
-      LIMIT_SIZE_PYPI: -1
+      # Read-only mirror after Forgejo cutover: zero upload limits block new pushes.
+      LIMIT_TOTAL_OWNER_SIZE: 0
+      LIMIT_SIZE_CONTAINER: 0
+      LIMIT_SIZE_PYPI: 0
+      LIMIT_SIZE_NPM: 0
+      LIMIT_SIZE_GENERIC: 0
+      LIMIT_SIZE_HELM: 0
+      LIMIT_SIZE_MAVEN: 0
+      LIMIT_SIZE_NUGET: 0
     repository:
       DISABLED_REPO_UNITS: ""
     server: