diff --git a/README.md b/README.md
index aef7104..177c350 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,13 @@
 
 ```bash
 git clone https://github.com/callebtc/cashu.git
-sudo apt install pkg-config libffi-dev libpq-dev
+sudo apt install build-essential pkg-config libffi-dev libpq-dev
 # on mac: brew install postgres
+
+# follow the instructions after installing pyenv
 curl https://pyenv.run | bash
 pyenv install 3.9.13
+
 cd cashu
 poetry install
 ```