diff --git a/theory/dqmc.ipynb b/theory/dqmc.ipynb
index d01e405..3720223 100644
--- a/theory/dqmc.ipynb
+++ b/theory/dqmc.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "2a9a48af",
+   "id": "0",
    "metadata": {},
    "source": [
     "# Determinant Quantum Monte Carlo"
@@ -10,7 +10,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "07253835",
+   "id": "1",
    "metadata": {},
    "source": [
     "## 1 Hubbard model\n",
@@ -51,7 +51,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cfbd4641",
+   "id": "2",
    "metadata": {},
    "source": [
     "## 2 Distribution operator\n",
@@ -200,7 +200,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0b80a77d",
+   "id": "3",
    "metadata": {},
    "source": [
     "## 3 Determinant Quantum Monte Carlo algorithm\n",
@@ -337,7 +337,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "3685c953",
+   "id": "4",
    "metadata": {},
    "outputs": [],
    "source": []