diff --git a/mupdf-sys/mupdf b/mupdf-sys/mupdf
index 31b25c5..da155bb 160000
--- a/mupdf-sys/mupdf
+++ b/mupdf-sys/mupdf
@@ -1 +1 @@
-Subproject commit 31b25c586c2db808a0817dd785c9f56243581255
+Subproject commit da155bb550860319420d01eaed3f59744e5f3748
diff --git a/src/colorspace.rs b/src/colorspace.rs
index fa6c581..b0d886e 100644
--- a/src/colorspace.rs
+++ b/src/colorspace.rs
@@ -214,9 +214,9 @@ mod test {
             )
             .unwrap();
         assert_eq!(n, 3);
-        assert!((0.6..0.7).contains(&gray[0]));
-        assert!((0.6..0.7).contains(&gray[1]));
-        assert!((0.6..0.7).contains(&gray[2]));
+        assert!((0.58..0.62).contains(&gray[0]));
+        assert!((0.58..0.62).contains(&gray[1]));
+        assert!((0.58..0.62).contains(&gray[2]));
         assert_eq!(gray[3], 0.0);
     }
 }
diff --git a/src/display_list.rs b/src/display_list.rs
index a593ca2..d2322dd 100644
--- a/src/display_list.rs
+++ b/src/display_list.rs
@@ -140,19 +140,19 @@ mod test {
             [Quad {
                 ul: Point {
                     x: 56.8,
-                    y: 69.32512
+                    y: 69.32953
                 },
                 ur: Point {
-                    x: 115.85405,
-                    y: 69.32512
+                    x: 115.85159,
+                    y: 69.32953
                 },
                 ll: Point {
                     x: 56.8,
-                    y: 87.311844
+                    y: 87.29713
                 },
                 lr: Point {
-                    x: 115.85405,
-                    y: 87.311844
+                    x: 115.85159,
+                    y: 87.29713
                 }
             }]
         );
diff --git a/src/page.rs b/src/page.rs
index 195c2f9..da2fbc8 100644
--- a/src/page.rs
+++ b/src/page.rs
@@ -534,20 +534,20 @@ mod test {
             [Quad {
                 ul: Point {
                     x: 56.8,
-                    y: 69.32512,
+                    y: 69.32953
                 },
                 ur: Point {
-                    x: 115.85405,
-                    y: 69.32512,
+                    x: 115.85159,
+                    y: 69.32953
                 },
                 ll: Point {
                     x: 56.8,
-                    y: 87.311844,
+                    y: 87.29713
                 },
                 lr: Point {
-                    x: 115.85405,
-                    y: 87.311844,
-                },
+                    x: 115.85159,
+                    y: 87.29713
+                }
             }]
         );
 
diff --git a/src/stroke_state.rs b/src/stroke_state.rs
index af96895..50b1f6c 100644
--- a/src/stroke_state.rs
+++ b/src/stroke_state.rs
@@ -122,8 +122,9 @@ impl StrokeState {
     pub fn dashes(&self) -> Vec<f32> {
         unsafe {
             let dash_len = (*self.inner).dash_len as usize;
+            let dash_ptr = (*self.inner).dash_list.as_ptr();
             let mut dash_list = Vec::with_capacity(dash_len);
-            dash_list.extend_from_slice(&(*self.inner).dash_list[0..dash_len]);
+            dash_list.extend_from_slice(std::slice::from_raw_parts(dash_ptr, dash_len));
             dash_list
         }
     }
diff --git a/src/text_page.rs b/src/text_page.rs
index 01338db..227ae30 100644
--- a/src/text_page.rs
+++ b/src/text_page.rs
@@ -278,19 +278,19 @@ mod test {
             [Quad {
                 ul: Point {
                     x: 56.8,
-                    y: 69.32512
+                    y: 69.32953
                 },
                 ur: Point {
-                    x: 115.85405,
-                    y: 69.32512
+                    x: 115.85159,
+                    y: 69.32953
                 },
                 ll: Point {
                     x: 56.8,
-                    y: 87.311844
+                    y: 87.29713
                 },
                 lr: Point {
-                    x: 115.85405,
-                    y: 87.311844
+                    x: 115.85159,
+                    y: 87.29713
                 }
             }]
         );