diff --git a/docs/src/pages/tools/io.md b/docs/src/pages/tools/io.md
index 5478c13b..0083027f 100644
--- a/docs/src/pages/tools/io.md
+++ b/docs/src/pages/tools/io.md
@@ -704,8 +704,6 @@ out qt;
   </div>
   <div class="param">
     <span class="pn">target_bbox</span>
-    <span class="pc">:</span>
-    <span class="pa"> tuple[float] | None = None</span>
   </div>
   <span class="pt">)-&gt;[</span>
   <span class="pr">MultiGraph</span>
diff --git a/pyproject.toml b/pyproject.toml
index 023e3e5d..2c66d757 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "cityseer"
-version = '4.2.0b6'
+version = '4.2.0'
 description = "Computational tools for network-based pedestrian-scale urban analysis"
 readme = "README.md"
 requires-python = ">=3.10, <3.12"