diff --git a/README.md b/README.md
index d00041a..ed36383 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ A simple and user-friendly Matrix client made with Flutter and a Gomuks backend.
 
 |                                                                                  Dark Mode                                                                                   |                                    Light Mode                                    |
 | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------: |
-| ![Screenshot of Nexus Client in dark mode, showing users talking, with a sidebar showing rooms and spaces, and another sidebar showing members](./assets/screenshotDark.png) | ![The same screenshot as above, but in light mode](./assets/screenshotLight.png) |
+| ![Screenshot of Nexus Client in dark mode, showing users talking, with a sidebar showing rooms and spaces, and another sidebar showing members](./assets/screenshotDark.avif) | ![The same screenshot as above, but in light mode](./assets/screenshotLight.avif) |
 
 ## Try it out
 
diff --git a/assets/screenshotDark.avif b/assets/screenshotDark.avif
new file mode 100644
index 0000000..cfdae77
Binary files /dev/null and b/assets/screenshotDark.avif differ
diff --git a/assets/screenshotDark.png b/assets/screenshotDark.png
deleted file mode 100644
index 48be6e5..0000000
Binary files a/assets/screenshotDark.png and /dev/null differ
diff --git a/assets/screenshotLight.avif b/assets/screenshotLight.avif
new file mode 100644
index 0000000..0d527a0
Binary files /dev/null and b/assets/screenshotLight.avif differ
diff --git a/assets/screenshotLight.png b/assets/screenshotLight.png
deleted file mode 100644
index 5aae7a0..0000000
Binary files a/assets/screenshotLight.png and /dev/null differ