diff --git a/README.md b/README.md
index 1f926309b..3feb38651 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 ## Prepare
 
 ```
-sudo apt install gcc-aarch64-linux-gnu
+sudo apt install gcc-aarch64-linux-gnu build-essential flex bison libssl-dev
 ```
 
 ## Build