diff --git a/internal/db/diff/migra.go b/internal/db/diff/migra.go
index 377e4d35b4..b5c001825b 100644
--- a/internal/db/diff/migra.go
+++ b/internal/db/diff/migra.go
@@ -143,7 +143,20 @@ func DiffSchemaMigra(ctx context.Context, source, target pgconn.Config, schema [
 	binds := []string{utils.EdgeRuntimeId + ":/root/.cache/deno:rw"}
 	var stdout, stderr bytes.Buffer
 	if err := utils.RunEdgeRuntimeScript(ctx, env, diffSchemaTypeScript, binds, "error diffing schema", &stdout, &stderr); err != nil {
+		if shouldFallbackToLegacyMigra(err) {
+			debugf("DiffSchemaMigra falling back to legacy migra after edge-runtime OOM")
+			return DiffSchemaMigraBash(ctx, source, target, schema, options...)
+		}
 		return "", err
 	}
 	return stdout.String(), nil
 }
+
+func shouldFallbackToLegacyMigra(err error) bool {
+	if err == nil {
+		return false
+	}
+	message := err.Error()
+	return strings.Contains(message, "Fatal JavaScript out of memory") ||
+		strings.Contains(message, "Ineffective mark-compacts near heap limit")
+}
diff --git a/internal/utils/edgeruntime.go b/internal/utils/edgeruntime.go
index fd38cf086a..06a42b464c 100644
--- a/internal/utils/edgeruntime.go
+++ b/internal/utils/edgeruntime.go
@@ -38,7 +38,7 @@ EOF
 		"",
 		stdout,
 		stderr,
-	); err != nil && !strings.HasPrefix(stderr.String(), "main worker has been destroyed") {
+	); err != nil && !strings.Contains(stderr.String(), "main worker has been destroyed") {
 		return errors.Errorf("%s: %w:\n%s", errPrefix, err, stderr.String())
 	}
 	return nil