diff --git a/p-median.ipynb b/p-median.ipynb
index a7c4163..379bddf 100755
--- a/p-median.ipynb
+++ b/p-median.ipynb
@@ -60,8 +60,9 @@
     "\\text{Subject to:} & \\\\\n",
     "& \\sum_{j = 1}^{n} z_{ij = 1}  \\;\\;\\;, \\forall_i, \\;\\;\\; i, j = 1,2,\\ldots, n \\\\\n",
     "& z_{ij} \\le y_j  \\;\\;\\;, \\forall_{i, j}\\;\\;\\; i, j = 1,2,\\ldots, n \\\\\n",
-    "& \\sum_{j=1}^n y_j = 1 \\\\\n",
-    "& a_{ij}, y_j \\in \\{0,1\\} \\;\\;\\; i, j = 1,2,\\ldots, n \\\\\n",
+    "& \\sum_{j=1}^n y_j = \\text{number_of_depots} \\\\\n",
+    "& z_{ij}, y_j \\in \\{0,1\\} \\;\\;\\; i, j = 1,2,\\ldots, n \\\\\n",
+    "& a_{ij} \\ge 0 \\\\\n",
     "\\end{aligned}\n",
     "$$"
    ]
@@ -395,9 +396,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Julia 1.9.0",
+   "display_name": "Julia 1.10.0-rc1",
    "language": "julia",
-   "name": "julia-1.9"
+   "name": "julia-1.10"
   },
   "language_info": {
    "file_extension": ".jl",