diff --git a/druid-shell/Cargo.toml b/druid-shell/Cargo.toml
index 4706015ba8..29c052c7da 100755
--- a/druid-shell/Cargo.toml
+++ b/druid-shell/Cargo.toml
@@ -17,7 +17,7 @@ default-target = "x86_64-pc-windows-msvc"
 default = ["gtk"]
 gtk = ["gio", "gdk", "gdk-sys", "glib", "glib-sys", "gtk-sys", "gtk-rs", "gdk-pixbuf"]
 x11 = ["x11rb", "nix", "cairo-sys-rs"]
-# Implement HasRawWindowHandle for WindowHandle 
+# Implement HasRawWindowHandle for WindowHandle
 raw-win-handle = ["raw-window-handle"]
 
 # passing on all the image features. AVIF is not supported because it does not
@@ -40,8 +40,8 @@ hdr = ["piet-common/hdr"]
 [dependencies]
 # NOTE: When changing the piet or kurbo versions, ensure that
 #       the kurbo version included in piet is compatible with the kurbo version specified here.
-piet-common = "=0.3.2"
-kurbo = "0.7.1"
+piet-common = "=0.4.0"
+kurbo = "0.8.1"
 
 tracing = "0.1.22"
 lazy_static = "1.4.0"
@@ -99,7 +99,7 @@ version = "0.3.44"
 features = ["Window", "MouseEvent", "CssStyleDeclaration", "WheelEvent", "KeyEvent", "KeyboardEvent"]
 
 [dev-dependencies]
-piet-common = { version = "=0.3.2", features = ["png"] }
+piet-common = { version = "=0.4.0", features = ["png"] }
 static_assertions = "1.1.0"
 test-env-log = { version = "0.2.5", features = ["trace"], default-features = false }
 tracing-subscriber = "0.2.15"
diff --git a/druid/Cargo.toml b/druid/Cargo.toml
index 6557909aa1..19496ba4c7 100644
--- a/druid/Cargo.toml
+++ b/druid/Cargo.toml
@@ -78,7 +78,7 @@ console_error_panic_hook = { version = "0.1.6" }
 float-cmp = { version = "0.8.0", features = ["std"], default-features = false }
 # tempfile 3.2.0 broke wasm; I assume it will be yanked (Jan 12, 2021)
 tempfile = "=3.1.0"
-piet-common = { version = "=0.3.2", features = ["png"] }
+piet-common = { version = "=0.4.0", features = ["png"] }
 pulldown-cmark = { version = "0.8", default-features = false }
 test-env-log = { version = "0.2.5", features = ["trace"], default-features = false }
 
diff --git a/druid/src/data.rs b/druid/src/data.rs
index 7225579bd5..07b004f5b5 100644
--- a/druid/src/data.rs
+++ b/druid/src/data.rs
@@ -413,9 +413,18 @@ impl Data for kurbo::Rect {
     }
 }
 
+impl Data for kurbo::RoundedRectRadii {
+    fn same(&self, other: &Self) -> bool {
+        self.top_left.same(&other.top_left)
+            && self.top_right.same(&other.top_right)
+            && self.bottom_left.same(&other.bottom_left)
+            && self.bottom_right.same(&other.bottom_right)
+    }
+}
+
 impl Data for kurbo::RoundedRect {
     fn same(&self, other: &Self) -> bool {
-        self.rect().same(&other.rect()) && self.radius().same(&other.radius())
+        self.rect().same(&other.rect()) && self.radii().same(&other.radii())
     }
 }
 
diff --git a/druid/src/widget/flex.rs b/druid/src/widget/flex.rs
index ce5f936a06..a91cfdc410 100644
--- a/druid/src/widget/flex.rs
+++ b/druid/src/widget/flex.rs
@@ -823,7 +823,7 @@ impl<T: Data> Widget<T> for Flex<T> {
             let color = env.get_debug_color(ctx.widget_id().to_raw());
             let my_baseline = ctx.size().height - ctx.widget_state.baseline_offset;
             let line = crate::kurbo::Line::new((0.0, my_baseline), (ctx.size().width, my_baseline));
-            let stroke_style = crate::piet::StrokeStyle::new().dash(vec![4.0, 4.0], 0.0);
+            let stroke_style = crate::piet::StrokeStyle::new().dash_pattern(&[4.0, 4.0]);
             ctx.stroke_styled(line, &color, 1.0, &stroke_style);
         }
     }
diff --git a/druid/src/widget/svg.rs b/druid/src/widget/svg.rs
index cd7038cd73..62125d5aca 100644
--- a/druid/src/widget/svg.rs
+++ b/druid/src/widget/svg.rs
@@ -311,7 +311,9 @@ impl SvgRenderer {
                 let brush = self.brush_from_usvg(&stroke.paint, stroke.opacity, ctx);
                 let mut stroke_style = StrokeStyle::new()
                     .line_join(match stroke.linejoin {
-                        usvg::LineJoin::Miter => LineJoin::Miter,
+                        usvg::LineJoin::Miter => LineJoin::Miter {
+                            limit: stroke.miterlimit.value(),
+                        },
                         usvg::LineJoin::Round => LineJoin::Round,
                         usvg::LineJoin::Bevel => LineJoin::Bevel,
                     })
@@ -319,10 +321,10 @@ impl SvgRenderer {
                         usvg::LineCap::Butt => LineCap::Butt,
                         usvg::LineCap::Round => LineCap::Round,
                         usvg::LineCap::Square => LineCap::Square,
-                    })
-                    .miter_limit(stroke.miterlimit.value());
+                    });
                 if let Some(dash_array) = &stroke.dasharray {
-                    stroke_style.set_dash(dash_array.clone(), stroke.dashoffset as f64);
+                    stroke_style.set_dash_pattern(dash_array.clone());
+                    stroke_style.set_dash_offset(stroke.dashoffset as f64);
                 }
                 ctx.stroke_styled(path, &*brush, stroke.width.value(), &stroke_style);
             }