diff --git a/README.md b/README.md
index c5f19e2..27eb162 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ Code in this repository produces files for bootable Micro-SD card for RaspberryP
  - USB-C cable for powering RaspberryPi (could be plugged directly into a laptop)
  - Micro-SD card (I use 2GB and that's plenty big) - Formatted with single FAT32 partition named `entropi`
  - Properly set up machine running Wireguard peer instance reachable from the Internet
+ - Docker (to run Golang builds and building extras `apk` packages repository)
 
 ## Usage