diff --git a/docs/src/pages/rustalgos/rustalgos.md b/docs/src/pages/rustalgos/rustalgos.md
index 612a6125..59652702 100644
--- a/docs/src/pages/rustalgos/rustalgos.md
+++ b/docs/src/pages/rustalgos/rustalgos.md
@@ -2726,22 +2726,22 @@ datapoints are not located with high spatial precision.
 
  
 
-<span class="name">node_lives</span><span class="annotation">: list[bool]</span>
+<span class="name">node_xs</span><span class="annotation">: list[float]</span>
 
 
  
 
-<span class="name">node_ys</span><span class="annotation">: list[float]</span>
+<span class="name">node_xys</span><span class="annotation">: list[tuple[float, float]]</span>
 
 
  
 
-<span class="name">node_xys</span><span class="annotation">: list[tuple[float, float]]</span>
+<span class="name">node_lives</span><span class="annotation">: list[bool]</span>
 
 
  
 
-<span class="name">node_xs</span><span class="annotation">: list[float]</span>
+<span class="name">node_ys</span><span class="annotation">: list[float]</span>
 
 
  
diff --git a/docs/src/pages/tools/io.md b/docs/src/pages/tools/io.md
index 8826eb8e..2f92094b 100644
--- a/docs/src/pages/tools/io.md
+++ b/docs/src/pages/tools/io.md
@@ -332,7 +332,7 @@ builds a graph automatically.
     <span class="pa"> shapely.geometry.polygon.Polygon</span>
   </div>
   <div class="param">
-    <span class="pn">poly_epsg_code</span>
+    <span class="pn">poly_crs_code</span>
     <span class="pc">:</span>
     <span class="pa"> int | str = 4326</span>
   </div>
@@ -407,7 +407,7 @@ builds a graph automatically.
 
 <div class="param-set">
   <div class="def">
-    <div class="name">poly_epsg_code</div>
+    <div class="name">poly_crs_code</div>
     <div class="type">int | str</div>
   </div>
   <div class="desc">
diff --git a/pyproject.toml b/pyproject.toml
index c82ccb83..d13c1c88 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "cityseer"
-version = '4.8.1'
+version = '4.9.0'
 description = "Computational tools for network-based pedestrian-scale urban analysis"
 readme = "README.md"
 requires-python = ">=3.10, <3.12"
diff --git a/pysrc/cityseer/tools/io.py b/pysrc/cityseer/tools/io.py
index bd23d8e2..6a70fff7 100644
--- a/pysrc/cityseer/tools/io.py
+++ b/pysrc/cityseer/tools/io.py
@@ -216,7 +216,7 @@ def fetch_osm_network(osm_request: str, timeout: int = 300, max_tries: int = 3)
 
 def osm_graph_from_poly(
     poly_geom: geometry.Polygon,
-    poly_epsg_code: int | str = 4326,
+    poly_crs_code: int | str = 4326,
     to_crs_code: int | str | None = None,
     custom_request: str | None = None,
     simplify: bool = True,
@@ -238,7 +238,7 @@ def osm_graph_from_poly(
     ----------
     poly_geom: shapely.Polygon
         A shapely Polygon representing the extents for which to fetch the OSM network.
-    poly_epsg_code: int | str
+    poly_crs_code: int | str
         An integer representing a valid EPSG code for the provided polygon. For example, [4326](https://epsg.io/4326) if
         using WGS lng / lat, or [27700](https://epsg.io/27700) if using the British National Grid.
     to_crs_code: int | str
@@ -305,12 +305,12 @@ def osm_graph_from_poly(
     ```
 
     """
-    if poly_epsg_code is not None and not isinstance(poly_epsg_code, (int, str)):  # type: ignore
-        raise TypeError('Please provide "poly_epsg_code" parameter as int or str')
+    if poly_crs_code is not None and not isinstance(poly_crs_code, (int, str)):  # type: ignore
+        raise TypeError('Please provide "poly_crs_code" parameter as int or str')
     if to_crs_code is not None and not isinstance(to_crs_code, (int, str)):
         raise TypeError('Please provide "to_crs_code" parameter as int or str')
     # format for OSM query
-    in_transformer = Transformer.from_crs(poly_epsg_code, 4326, always_xy=True)
+    in_transformer = Transformer.from_crs(poly_crs_code, 4326, always_xy=True)
     coords = [in_transformer.transform(lng, lat) for lng, lat in poly_geom.exterior.coords]
     geom_osm = str.join(" ", [f"{lat} {lng}" for lng, lat in coords])
     if custom_request is not None:
diff --git a/tests/tools/test_io.py b/tests/tools/test_io.py
index 28cf57fd..e91c8d81 100644
--- a/tests/tools/test_io.py
+++ b/tests/tools/test_io.py
@@ -155,7 +155,7 @@ def test_osm_graph_from_poly():
     # 32630 corresponds to UTM 30N
     poly_utm, utm_epsg = io.buffered_point_poly(LNG, LAT, BUFFER, projected=True)
     assert utm_epsg == 32630
-    network_from_utm = io.osm_graph_from_poly(poly_utm, poly_epsg_code=utm_epsg, simplify=False)
+    network_from_utm = io.osm_graph_from_poly(poly_utm, poly_crs_code=utm_epsg, simplify=False)
     # visual check for debugging
     # plot.plot_nx(network_from_utm)
     assert isinstance(network_from_utm, nx.MultiGraph)