diff --git a/write-fonts/Cargo.toml b/write-fonts/Cargo.toml
index 387846ed1..ff35db335 100644
--- a/write-fonts/Cargo.toml
+++ b/write-fonts/Cargo.toml
@@ -17,7 +17,7 @@ serde = ["dep:serde", "font-types/serde", "read-fonts/serde"]
 font-types = { version = "0.4.0", path = "../font-types" }
 read-fonts = { version = "0.11.2", path = "../read-fonts" }
 log = "0.4"
-kurbo = "0.9.4"
+kurbo = "0.10.2"
 dot2 = { version = "1.0", optional = true }
 serde = { version = "1.0", features = ["derive"], optional = true }
 indexmap = "2.0"
diff --git a/write-fonts/src/tables/glyf/simple.rs b/write-fonts/src/tables/glyf/simple.rs
index 26114d8f7..add597047 100644
--- a/write-fonts/src/tables/glyf/simple.rs
+++ b/write-fonts/src/tables/glyf/simple.rs
@@ -2,7 +2,6 @@
 
 use crate::{
     from_obj::{FromObjRef, FromTableRef, ToOwnedTable},
-    pens::{self, ControlBoundsPen},
     util::{self, MultiZip, WrappingGet},
     FontWrite, OtRound,
 };
@@ -572,10 +571,8 @@ fn simple_glyphs_from_kurbo(paths: &[BezPath]) -> Result<Vec<SimpleGlyph>, Malfo
     for (contours, path) in glyph_contours.into_iter().zip(paths.iter()) {
         // https://github.com/googlefonts/fontmake-rs/issues/285 we want control point box, not tight bbox
         // so don't call path.bounding_box
-        let mut cbox_pen = ControlBoundsPen::new();
-        pens::write_to_pen(path, &mut cbox_pen);
         glyphs.push(SimpleGlyph {
-            bbox: cbox_pen.bounds().unwrap_or_default().into(),
+            bbox: path.control_box().into(),
             contours,
             _instructions: Default::default(),
         })