diff --git a/packages/core/platform/images/migrations/migrations/37 b/packages/core/platform/images/migrations/migrations/37
deleted file mode 100755
index b8ff3147..00000000
--- a/packages/core/platform/images/migrations/migrations/37
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/bin/sh
-# Migration 37 --> 38
-# Backfill spec.version on postgreses.apps.cozystack.io resources.
-#
-# Before this migration PostgreSQL had a default version field set to v18.
-# This migration sets spec.version to "v17" for any postgres app resource that
-# does not already have it set, to ensure compatibility with monitoring
-# configurations that are hardcoded to PostgreSQL 17.
-
-set -euo pipefail
-
-DEFAULT_VERSION="v17"
-
-# Skip if the CRD does not exist (postgres was never installed)
-if ! kubectl api-resources --api-group=apps.cozystack.io -o name 2>/dev/null | grep -q '^postgreses\.'; then
-  echo "CRD postgreses.apps.cozystack.io not found, skipping migration"
-  kubectl create configmap -n cozy-system cozystack-version \
-    --from-literal=version=38 --dry-run=client -o yaml | kubectl apply -f-
-  exit 0
-fi
-
-POSTGRESES=$(kubectl get postgreses.apps.cozystack.io -A -o jsonpath='{range .items[*]}{.metadata.namespace}/{.metadata.name}{"\n"}{end}')
-for resource in $POSTGRESES; do
-  NS="${resource%%/*}"
-  APP_NAME="${resource##*/}"
-
-  # Skip if spec.version is already set
-  CURRENT_VER=$(kubectl get postgreses.apps.cozystack.io -n "$NS" "$APP_NAME" \
-    -o jsonpath='{.spec.version}')
-  if [ -n "$CURRENT_VER" ]; then
-    echo "SKIP $NS/$APP_NAME: spec.version already set to '$CURRENT_VER'"
-    continue
-  fi
-
-  echo "Patching postgres/$APP_NAME in $NS: setting version=$DEFAULT_VERSION"
-
-  kubectl patch postgreses.apps.cozystack.io -n "$NS" "$APP_NAME" --type=merge \
-    --patch "{\"spec\":{\"version\":\"${DEFAULT_VERSION}\"}}"
-done
-
-# Stamp version
-kubectl create configmap -n cozy-system cozystack-version \
-  --from-literal=version=38 --dry-run=client -o yaml | kubectl apply -f-