diff --git a/Cargo.toml b/Cargo.toml
index 622b4f2..5417d2d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,13 +11,13 @@ repository = "https://github.com/deinstapel/cursive-multiplex"
 version = "0.6.0"
 
 [dependencies]
-cursive_core = "0.3"
+cursive_core = "0.4"
 thiserror = "1"
 indextree = "4.3"
 log = "0.4"
 
 [dev-dependencies]
 crossbeam = "0.8"
-cursive = "0.17"
+cursive = "0.21"
 serde_json = "1"
 insta = "1.10.0"
diff --git a/tests/snapshots/end2end__end2end_horizontal_fixed_size.snap b/tests/snapshots/end2end__end2end_horizontal_fixed_size.snap
index b05222e..fc39d21 100644
--- a/tests/snapshots/end2end__end2end_horizontal_fixed_size.snap
+++ b/tests/snapshots/end2end__end2end_horizontal_fixed_size.snap
@@ -4,17 +4,17 @@ expression: frames.try_iter().last().unwrap()
 ---
 captured piece:
 x01234567890123456789012345678901234567890123456789012345678901234567890123456789x
-0Root                                    │┌──────────────────────────────────────|
-1                                        ││Fixed                                 |
-2                                        ││                                      |
-3                                        ││                                      |
-4                                        ││                                      |
-5                                        ││                                      |
-6                                        ││                                      |
-7                                        ││                                      |
-8                                        ││                                      |
-9                                        ││                                      |
-0                                        │└──────────────────────────────────────|
+0Root                                    │┌─────────────────────────────────────┐|
+1                                        ││Fixed                                │|
+2                                        ││                                     │|
+3                                        ││                                     │|
+4                                        ││                                     │|
+5                                        ││                                     │|
+6                                        ││                                     │|
+7                                        ││                                     │|
+8                                        ││                                     │|
+9                                        ││                                     │|
+0                                        │└─────────────────────────────────────┘|
 1                                        │                                       |
 2                                        │                                       |
 3                                        │                                       |
@@ -29,4 +29,3 @@ x0123456789012345678901234567890123456789012345678901234567890123456789012345678
 2                                        │                                       |
 3                                        │                                       |
 x--------------------------------------------------------------------------------x
-