diff --git a/README.md b/README.md
index 0ef78a7..ccca94a 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Arch Linux provides Docker images both in the [official DockerHub library](https
 
 Images in the official library are updated weekly while our own repository is updated daily.
 
-Two versions of the image are provided: `base` (approx. 160MB) and `base-devel` (approx. 240MB), containing the respective meta package / package group. Both are available as tags with `latest` pointing to `base`. Additionally, images are tagged with their date and build job number, f.e. `base-devel-20201118.0.9436`.
+Two versions of the image are provided: `base` (approx. 150 MiB) and `base-devel` (approx. 260 MiB), containing the respective meta package / package group. Both are available as tags with `latest` pointing to `base`. Additionally, images are tagged with their date and build job number, f.e. `base-devel-20201118.0.9436`.
 
 While the images are regularly kept up to date it is strongly recommended running `pacman -Syu` right after starting a container due to the rolling release nature of Arch Linux.