diff --git a/docs/en/releases/unreleased.ipynb b/docs/en/releases/unreleased.ipynb
index 6b342b0..74819fe 100644
--- a/docs/en/releases/unreleased.ipynb
+++ b/docs/en/releases/unreleased.ipynb
@@ -569,11 +569,57 @@
   },
   {
    "cell_type": "markdown",
-   "id": "dd292ce1",
+   "id": "67828e19",
    "metadata": {},
    "source": [
     "Starting with this release, data is generated successfully in cases like the example above.\n",
     "\n",
+    "#### Fixed a bug where `latex` specifications were ignored in LaTeX output for decision variable bounds\n",
+    "\n",
+    "We fixed a bug where the values of the `latex=` keyword argument for other variables were ignored when outputting decision variable bounds in $\\LaTeX$."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "765650c8",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/latex": [
+       "$$\\begin{array}{rl}\n",
+       "\\text{Problem}\\colon &\\text{LaTeX bugfix example}\\\\\\displaystyle \\min &\\displaystyle x\\\\&\\\\\\text{where}&\\\\&\\text{Decision Variables:}\\\\&\\qquad \\begin{alignedat}{2}x&\\in \\mathbb{R}\\;\\left(\\ell\\leq x\\leq \\mathcal{U}\\right)&\\quad &0\\text{-dim continuous variable}\\\\\\end{alignedat}\\\\&\\\\&\\text{Placeholders:}\\\\&\\qquad \\begin{alignedat}{2}\\ell&\\in \\mathbb{R}&\\quad &\\text{A scalar placeholder in }\\mathbb{R}\\\\\\mathcal{U}&\\in \\mathbb{R}&\\quad &\\text{A scalar placeholder in }\\mathbb{R}\\\\\\end{alignedat}\\end{array}\n",
+       "$$"
+      ],
+      "text/plain": [
+       "Problem(name=\"LaTeX bugfix example\", sense=MINIMIZE, objective=x, constraints=[])"
+      ]
+     },
+     "execution_count": 1,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "import jijmodeling as jm\n",
+    "\n",
+    "problem = jm.Problem(\"LaTeX bugfix example\")\n",
+    "L = problem.Float(\"L\", latex=r\"\\ell\")\n",
+    "U = problem.Float(\"U\", latex=r\"\\mathcal{U}\")\n",
+    "x = problem.ContinuousVar(\"x\", lower_bound=L, upper_bound=U)\n",
+    "problem += x\n",
+    "\n",
+    "problem"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "dd292ce1",
+   "metadata": {},
+   "source": [
+    "In previous releases, the `latex` specifications were ignored in the code above, and the bounds were displayed as $L \\leq x \\leq U$.\n",
+    "Starting with this release, the settings are preserved as shown above, and the bounds are displayed as $\\ell \\leq x \\leq \\mathcal{U}$.\n",
     "\n",
     "## Other Changes\n",
     "\n",
diff --git a/docs/ja/releases/unreleased.ipynb b/docs/ja/releases/unreleased.ipynb
index 22b5469..2c22c43 100644
--- a/docs/ja/releases/unreleased.ipynb
+++ b/docs/ja/releases/unreleased.ipynb
@@ -559,10 +559,56 @@
   },
   {
    "cell_type": "markdown",
+   "id": "5fc150c5",
    "metadata": {},
    "source": [
     "今回のリリースから、上記のように問題なくデータが生成されるようになりました。\n",
     "\n",
+    "#### 決定変数の上下界のLaTeX出力で `latex` 指定が無視されていた問題の修正\n",
+    "\n",
+    "決定変数の上下界を $\\LaTeX$ 出力する際に、他の変数の `latex=` キーワード引数の値が無視されていた問題を修正しました。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "e1b1c10f",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/latex": [
+       "$$\\begin{array}{rl}\n",
+       "\\text{Problem}\\colon &\\text{LaTeX bugfix example}\\\\\\displaystyle \\min &\\displaystyle x\\\\&\\\\\\text{where}&\\\\&\\text{Decision Variables:}\\\\&\\qquad \\begin{alignedat}{2}x&\\in \\mathbb{R}\\;\\left(\\ell\\leq x\\leq \\mathcal{U}\\right)&\\quad &0\\text{-dim continuous variable}\\\\\\end{alignedat}\\\\&\\\\&\\text{Placeholders:}\\\\&\\qquad \\begin{alignedat}{2}\\ell&\\in \\mathbb{R}&\\quad &\\text{A scalar placeholder in }\\mathbb{R}\\\\\\mathcal{U}&\\in \\mathbb{R}&\\quad &\\text{A scalar placeholder in }\\mathbb{R}\\\\\\end{alignedat}\\end{array}\n",
+       "$$"
+      ],
+      "text/plain": [
+       "Problem(name=\"LaTeX bugfix example\", sense=MINIMIZE, objective=x, constraints=[])"
+      ]
+     },
+     "execution_count": 1,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "import jijmodeling as jm\n",
+    "\n",
+    "problem = jm.Problem(\"LaTeX bugfix example\")\n",
+    "L = problem.Float(\"L\", latex=r\"\\ell\")\n",
+    "U = problem.Float(\"U\", latex=r\"\\mathcal{U}\")\n",
+    "x = problem.ContinuousVar(\"x\", lower_bound=L, upper_bound=U)\n",
+    "problem += x\n",
+    "\n",
+    "problem"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "これまでのリリースでは、上記のコードでは `latex` 指定が無視され、$L \\leq x \\leq U$ のように表示されていましたが、上記のように設定が保たれるようになり、$\\ell \\leq x \\leq \\mathcal{U}$ と表示されるようになりました。\n",
+    "\n",
     "## その他の変更\n",
     "\n",
     "- バージョン条件を緩和し、Python 3.11 以降の任意の Python 3 でのインストールを許容しました。"
diff --git a/markdowns/en/releases/unreleased.md b/markdowns/en/releases/unreleased.md
index c548dd2..a286243 100644
--- a/markdowns/en/releases/unreleased.md
+++ b/markdowns/en/releases/unreleased.md
@@ -166,6 +166,24 @@ problem.generate_random_dataset(seed=17)
 
 Starting with this release, data is generated successfully in cases like the example above.
 
+#### Fixed a bug where `latex` specifications were ignored in LaTeX output for decision variable bounds
+
+We fixed a bug where the values of the `latex=` keyword argument for other variables were ignored when outputting decision variable bounds in $\LaTeX$.
+
+```{code-cell} ipython3
+import jijmodeling as jm
+
+problem = jm.Problem("LaTeX bugfix example")
+L = problem.Float("L", latex=r"\ell")
+U = problem.Float("U", latex=r"\mathcal{U}")
+x = problem.ContinuousVar("x", lower_bound=L, upper_bound=U)
+problem += x
+
+problem
+```
+
+In previous releases, the `latex` specifications were ignored in the code above, and the bounds were displayed as $L \leq x \leq U$.
+Starting with this release, the settings are preserved as shown above, and the bounds are displayed as $\ell \leq x \leq \mathcal{U}$.
 
 ## Other Changes
 
diff --git a/markdowns/ja/releases/unreleased.md b/markdowns/ja/releases/unreleased.md
index 7af46e7..4c6d89e 100644
--- a/markdowns/ja/releases/unreleased.md
+++ b/markdowns/ja/releases/unreleased.md
@@ -163,6 +163,24 @@ problem.generate_random_dataset(seed=17)
 
 今回のリリースから、上記のように問題なくデータが生成されるようになりました。
 
+#### 決定変数の上下界のLaTeX出力で `latex` 指定が無視されていた問題の修正
+
+決定変数の上下界を $\LaTeX$ 出力する際に、他の変数の `latex=` キーワード引数の値が無視されていた問題を修正しました。
+
+```{code-cell} ipython3
+import jijmodeling as jm
+
+problem = jm.Problem("LaTeX bugfix example")
+L = problem.Float("L", latex=r"\ell")
+U = problem.Float("U", latex=r"\mathcal{U}")
+x = problem.ContinuousVar("x", lower_bound=L, upper_bound=U)
+problem += x
+
+problem
+```
+
+これまでのリリースでは、上記のコードでは `latex` 指定が無視され、$L \leq x \leq U$ のように表示されていましたが、上記のように設定が保たれるようになり、$\ell \leq x \leq \mathcal{U}$ と表示されるようになりました。
+
 ## その他の変更
 
 - バージョン条件を緩和し、Python 3.11 以降の任意の Python 3 でのインストールを許容しました。