diff --git a/Cargo.lock b/Cargo.lock
index d8681c4be0..53dbb11a59 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4721,9 +4721,9 @@ dependencies = [
 
 [[package]]
 name = "grid"
-version = "0.11.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1df00eed8d1f0db937f6be10e46e8072b0671accb504cf0f959c5c52c679f5b9"
+checksum = "d196ffc1627db18a531359249b2bf8416178d84b729f3cebeb278f285fb9b58c"
 
 [[package]]
 name = "group"
@@ -9976,12 +9976,14 @@ dependencies = [
 
 [[package]]
 name = "taffy"
-version = "0.3.11"
-source = "git+https://github.com/DioxusLabs/taffy?rev=1876f72bee5e376023eaa518aa7b8a34c769bd1b#1876f72bee5e376023eaa518aa7b8a34c769bd1b"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b2e140b328c6cb5e744bb2c65910b47df86b239afc793ee2c52262569cf9225"
 dependencies = [
  "arrayvec",
  "grid",
  "num-traits",
+ "serde",
  "slotmap",
 ]
 
diff --git a/crates/editor/src/element.rs b/crates/editor/src/element.rs
index 9b04445e07..93653f45de 100644
--- a/crates/editor/src/element.rs
+++ b/crates/editor/src/element.rs
@@ -3670,19 +3670,23 @@ impl Element for EditorElement {
                     let editor_handle = cx.view().clone();
                     let max_line_number_width =
                         self.max_line_number_width(&editor.snapshot(cx), cx);
-                    cx.request_measured_layout(Style::default(), move |known_dimensions, _, cx| {
-                        editor_handle
-                            .update(cx, |editor, cx| {
-                                compute_auto_height_layout(
-                                    editor,
-                                    max_lines,
-                                    max_line_number_width,
-                                    known_dimensions,
-                                    cx,
-                                )
-                            })
-                            .unwrap_or_default()
-                    })
+                    cx.request_measured_layout(
+                        Style::default(),
+                        move |known_dimensions, available_space, cx| {
+                            editor_handle
+                                .update(cx, |editor, cx| {
+                                    compute_auto_height_layout(
+                                        editor,
+                                        max_lines,
+                                        max_line_number_width,
+                                        known_dimensions,
+                                        available_space.width,
+                                        cx,
+                                    )
+                                })
+                                .unwrap_or_default()
+                        },
+                    )
                 }
                 EditorMode::Full => {
                     let mut style = Style::default();
@@ -5261,9 +5265,16 @@ fn compute_auto_height_layout(
     max_lines: usize,
     max_line_number_width: Pixels,
     known_dimensions: Size<Option<Pixels>>,
+    available_width: AvailableSpace,
     cx: &mut ViewContext<Editor>,
 ) -> Option<Size<Pixels>> {
-    let width = known_dimensions.width?;
+    let width = known_dimensions.width.or_else(|| {
+        if let AvailableSpace::Definite(available_width) = available_width {
+            Some(available_width)
+        } else {
+            None
+        }
+    })?;
     if let Some(height) = known_dimensions.height {
         return Some(size(width, height));
     }
diff --git a/crates/gpui/Cargo.toml b/crates/gpui/Cargo.toml
index ed0e63f9db..f8ca20902b 100644
--- a/crates/gpui/Cargo.toml
+++ b/crates/gpui/Cargo.toml
@@ -61,7 +61,7 @@ slotmap = "1.0.6"
 smallvec.workspace = true
 smol.workspace = true
 sum_tree.workspace = true
-taffy = { git = "https://github.com/DioxusLabs/taffy", rev = "1876f72bee5e376023eaa518aa7b8a34c769bd1b" }
+taffy = "0.4.3"
 thiserror.workspace = true
 time.workspace = true
 util.workspace = true
diff --git a/crates/gpui/src/taffy.rs b/crates/gpui/src/taffy.rs
index 03ba16cd3e..16f887414e 100644
--- a/crates/gpui/src/taffy.rs
+++ b/crates/gpui/src/taffy.rs
@@ -9,14 +9,14 @@ use taffy::{
     geometry::{Point as TaffyPoint, Rect as TaffyRect, Size as TaffySize},
     style::AvailableSpace as TaffyAvailableSpace,
     tree::NodeId,
-    Taffy,
+    TaffyTree, TraversePartialTree as _,
 };
 
 type NodeMeasureFn =
     Box<dyn FnMut(Size<Option<Pixels>>, Size<AvailableSpace>, &mut WindowContext) -> Size<Pixels>>;
 
 pub struct TaffyLayoutEngine {
-    taffy: Taffy,
+    taffy: TaffyTree<()>,
     styles: FxHashMap<LayoutId, Style>,
     children_to_parents: FxHashMap<LayoutId, LayoutId>,
     absolute_layout_bounds: FxHashMap<LayoutId, Bounds<Pixels>>,
@@ -29,7 +29,7 @@ static EXPECT_MESSAGE: &str = "we should avoid taffy layout errors by constructi
 impl TaffyLayoutEngine {
     pub fn new() -> Self {
         TaffyLayoutEngine {
-            taffy: Taffy::new(),
+            taffy: TaffyTree::new(),
             styles: FxHashMap::default(),
             children_to_parents: FxHashMap::default(),
             absolute_layout_bounds: FxHashMap::default(),
@@ -114,7 +114,7 @@ impl TaffyLayoutEngine {
     fn max_depth(&self, depth: u32, parent: LayoutId) -> anyhow::Result<u32> {
         println!(
             "{parent:?} at depth {depth} has {} children",
-            self.taffy.child_count(parent.0)?
+            self.taffy.child_count(parent.0)
         );
 
         let mut max_child_depth = 0;