diff --git a/README.md b/README.md
index bea3943..79826e2 100644
--- a/README.md
+++ b/README.md
@@ -10,13 +10,17 @@ https://sourceforge.net/projects/mocicon
 
 ## OPTIONS/SOURCE:
 
-The source is fairly simple, and there are plenty of options to go around.
-I don't do much source commenting, but it is all fairly self explanitory.
+On debian, build dependencies install with:
+
+```shell
+apt install -y build-essential libgtk-3-dev
+```
+
 
 compiling without make:
 
 ```shell
-gcc -Wall -g -O2 mocicon.c -o mocicon $(pkg-config --cflags --libs gtk+-2.0)
+gcc -Wall -g -O2 mocicon.c -o mocicon $(pkg-config --cflags --libs gtk+-3.0)
 ```
 
 with make it is the regular as root:
@@ -25,7 +29,7 @@ with make it is the regular as root:
 make clean install
 ```
 
-it's simple enough. you'll need the gtk+ 2.0 libs and that's it.
+it's simple enough. you'll need the gtk+ 3.0 libs and that's it.
 
 run `./install` as root. It just installs mocicon in `/usr/local/bin/`