diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6309c78..314cbaf 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -30,7 +30,7 @@ jobs:
         with:
           cache-downloads: true
           cache-environment: true
-          environment-file: tests/environment-tests.yml
+          environment-file: environment.yml
           post-cleanup: none
 
       - name: Lint notebooks
diff --git a/environment.yml b/environment.yml
index ea18f6a..384e06c 100644
--- a/environment.yml
+++ b/environment.yml
@@ -3,7 +3,8 @@ channels:
   - conda-forge
 dependencies:
   - jupyterlab
-  - osmnx=1.5.1
+  - osmnx=1.6.0
   - pillow
+  - pre-commit
   - python=3.11.*
   - python-igraph
diff --git a/notebooks/03-graph-place-queries.ipynb b/notebooks/03-graph-place-queries.ipynb
index 6237125..c9f09e4 100644
--- a/notebooks/03-graph-place-queries.ipynb
+++ b/notebooks/03-graph-place-queries.ipynb
@@ -79,20 +79,10 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# you can also buffer the place boundaries (0.5 km in this example)\n",
-    "gdf = ox.geocode_to_gdf(\"Piedmont, California, USA\", buffer_dist=500)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# you can get multiple places in a single query\n",
+    "# you can get multiple countries in a single query\n",
     "gdf = ox.geocode_to_gdf([\"United Kingdom\", \"Ireland\"])\n",
     "\n",
-    "# or optionally buffer them\n",
+    "# or multiple cities\n",
     "places = [\n",
     "    \"Berkeley, California, USA\",\n",
     "    \"Oakland, California, USA\",\n",
@@ -100,7 +90,7 @@
     "    \"Emeryville, California, USA\",\n",
     "    \"Alameda, Alameda County, CA, USA\",\n",
     "]\n",
-    "gdf = ox.geocode_to_gdf(places, buffer_dist=500)"
+    "gdf = ox.geocode_to_gdf(places)"
    ]
   },
   {
@@ -246,8 +236,11 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# you can also get a network with a buffer distance (meters) around the place\n",
-    "G = ox.graph_from_place(\"Piedmont, California, USA\", network_type=\"walk\", buffer_dist=200)"
+    "# or get the walking network within a 500 meter buffer of piedmont\n",
+    "polygon = ox.geocode_to_gdf(\"Piedmont, California, USA\").loc[0, \"geometry\"]\n",
+    "poly_proj, crs_proj = ox.projection.project_geometry(polygon)\n",
+    "polygon, _ = ox.projection.project_geometry(poly_proj.buffer(500), crs=crs_proj, to_latlong=True)\n",
+    "G = ox.graph_from_polygon(polygon, network_type=\"walk\")"
    ]
   },
   {
diff --git a/tests/environment-tests.yml b/tests/environment-tests.yml
deleted file mode 100644
index 1c91a2c..0000000
--- a/tests/environment-tests.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-name: osmnx-examples
-channels:
-  - conda-forge
-dependencies:
-  - jupyter
-  - osmnx=1.5.1
-  - pillow
-  - pre-commit
-  - python=3.11.*
-  - python-igraph