diff --git a/app/controlplane/pkg/data/ent/migrate/migrations/20241029113317.sql b/app/controlplane/pkg/data/ent/migrate/migrations/20241029113317.sql
new file mode 100644
index 000000000..b1ce5c3a7
--- /dev/null
+++ b/app/controlplane/pkg/data/ent/migrate/migrations/20241029113317.sql
@@ -0,0 +1,17 @@
+-- In a previous migration we created projects for already deleted workflows
+-- This code makes sure to soft-delete these invalid projects
+-- Update projects.deleted_at where all associated workflows are deleted
+UPDATE projects p
+SET deleted_at = (
+    SELECT MIN(w.deleted_at)
+    FROM workflows w
+    WHERE w.project_id = p.id
+)
+WHERE EXISTS (
+    SELECT 1
+    FROM workflows w
+    WHERE w.project_id = p.id
+    GROUP BY w.project_id
+    HAVING COUNT(*) = COUNT(w.deleted_at)
+)
+AND p.deleted_at IS NULL;
diff --git a/app/controlplane/pkg/data/ent/migrate/migrations/atlas.sum b/app/controlplane/pkg/data/ent/migrate/migrations/atlas.sum
index 50d1c3d47..ce5415d58 100644
--- a/app/controlplane/pkg/data/ent/migrate/migrations/atlas.sum
+++ b/app/controlplane/pkg/data/ent/migrate/migrations/atlas.sum
@@ -1,4 +1,4 @@
-h1:Q4CQ7DpD1UL5HhSF2Zdj0ToZe3B9x2zYDvDszaHAzEs=
+h1:rVCx+vgsLP6ZUnPUMyNxpIiU1vQ26X9iHeREK/CVFaU=
 20230706165452_init-schema.sql h1:VvqbNFEQnCvUVyj2iDYVQQxDM0+sSXqocpt/5H64k8M=
 20230710111950-cas-backend.sql h1:A8iBuSzZIEbdsv9ipBtscZQuaBp3V5/VMw7eZH6GX+g=
 20230712094107-cas-backends-workflow-runs.sql h1:a5rzxpVGyd56nLRSsKrmCFc9sebg65RWzLghKHh5xvI=
@@ -54,3 +54,4 @@ h1:Q4CQ7DpD1UL5HhSF2Zdj0ToZe3B9x2zYDvDszaHAzEs=
 20241025074349.sql h1:7jGmBWBb46o7zcInStdDqZM7AiBa/zSnJ2hgmzQYD24=
 20241025223253.sql h1:XPtVWq3cLrBC+0u81dVNW/r5KIItARVljKdvdcHIt/w=
 20241025224306.sql h1:oBgRGg64ZIyv4eOoHLRE6ceqrjIf6y4dUaM+qvt2RAU=
+20241029113317.sql h1:6cl0ZSB3cxou9OzatS/pj+eJkL+dgCJGCfVk+5v/KI0=