diff --git a/notebooks/supply_chain/single_echelon_example.ipynb b/notebooks/supply_chain/single_echelon_example.ipynb
index 1b7616f44..7a3771a9d 100644
--- a/notebooks/supply_chain/single_echelon_example.ipynb
+++ b/notebooks/supply_chain/single_echelon_example.ipynb
@@ -152,7 +152,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "To show the training process here, we shorten the training episodes and duration here, to config it you can tune the parameters in [examples/rl/sc_single_echelon.yml](https://github.com/microsoft/maro/blob/sc_single_echelon/examples/rl/sc_single_echelon.yml) and [examples/supply_chain/single_echelon/config.py](https://github.com/microsoft/maro/blob/sc_single_echelon/examples/supply_chain/single_echelon/config.py)."
+    "Since this example is not yet released as a package, we recommend you to download this branch and [install MARO from source](https://github.com/microsoft/maro?tab=readme-ov-file#install-maro-from-source)."
    ]
   },
   {
@@ -165,6 +165,13 @@
     "os.chdir(\"../..\")"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To show the training process here, we shorten the training episodes and duration here, to config it you can tune the parameters in [examples/rl/sc_single_echelon.yml](https://github.com/microsoft/maro/blob/sc_single_echelon/examples/rl/sc_single_echelon.yml) and [examples/supply_chain/single_echelon/config.py](https://github.com/microsoft/maro/blob/sc_single_echelon/examples/supply_chain/single_echelon/config.py)."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 2,
diff --git a/requirements.dev.txt b/requirements.dev.txt
index 3bbf44e1e..0a2bff840 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -33,3 +33,4 @@ stringcase>=1.2.0
 tabulate>=0.8.5
 tornado>=6.1
 tqdm>=4.51.0
+matplotlib