diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
index 9a423d9..de2e15a 100644
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -3,6 +3,7 @@
 ## [Unreleased]
 
 - Upgrade to imgui/cimgui 1.53.1
+  - Rename `Ui::show_test_window` to `Ui::show_demo_window`.
 
 
 ## [0.0.18] - 2017-12-23
diff --git a/imgui-examples/examples/test_window.rs b/imgui-examples/examples/test_window.rs
index 652b228..d111416 100644
--- a/imgui-examples/examples/test_window.rs
+++ b/imgui-examples/examples/test_window.rs
@@ -9,7 +9,7 @@ const CLEAR_COLOR: [f32; 4] = [0.2, 0.2, 0.2, 1.0];
 fn main() {
     support::run("test_window.rs".to_owned(), CLEAR_COLOR, |ui| {
         let mut open = true;
-        ui.show_test_window(&mut open);
+        ui.show_demo_window(&mut open);
         open
     });
 }
diff --git a/imgui-sys/src/lib.rs b/imgui-sys/src/lib.rs
index 3d0f6a1..33419fe 100644
--- a/imgui-sys/src/lib.rs
+++ b/imgui-sys/src/lib.rs
@@ -860,12 +860,18 @@ extern "C" {
 
 // Demo/Debug/Info
 extern "C" {
-    pub fn igShowTestWindow(opened: *mut bool);
+    pub fn igShowDemoWindow(opened: *mut bool);
     pub fn igShowMetricsWindow(opened: *mut bool);
     pub fn igShowStyleEditor(style: *mut ImGuiStyle);
     pub fn igShowUserGuide();
 }
 
+#[allow(non_snake_case)]
+#[deprecated(since = "0.0.19", note = "please use igShowDemoWindow instead")]
+pub unsafe fn igShowTestWindow(opened: *mut bool) {
+   igShowDemoWindow(opened)
+}
+
 // Window
 extern "C" {
     pub fn igBegin(name: *const c_char, open: *mut bool, flags: ImGuiWindowFlags) -> bool;
diff --git a/src/lib.rs b/src/lib.rs
index 888405c..bbc188a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -421,9 +421,13 @@ impl<'ui> Ui<'ui> {
             sys::igShowStyleEditor(style as *mut ImGuiStyle);
         }
     }
+    #[deprecated(since = "0.0.19", note = "please use show_demo_window instead")]
     pub fn show_test_window(&self, opened: &mut bool) {
+        self.show_demo_window(opened)
+    }
+    pub fn show_demo_window(&self, opened: &mut bool) {
         unsafe {
-            sys::igShowTestWindow(opened);
+            sys::igShowDemoWindow(opened);
         }
     }
     pub fn show_metrics_window(&self, opened: &mut bool) {