diff --git a/README.md b/README.md
index a938317..cadb65b 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,14 @@
 
 "What'd you do?" and "What're you gonna do?" dialog prompts that both pre-fill with whatever you put in for the last of either prompt at the end and start of every pomodoro work session, respectively.
 
+## Requirements
+
+* Python 3
+* [pip](https://packaging.python.org/guides/installing-using-linux-tools/) for Python3
+
+NOTE: Instructions are written with the assumption that the command `python` points to the python3 interpreter. If `python --version` reports a 2.x version, you should substitute `python3` in the commands using `python` below.
+
+
 ## Installation
 
 ```
@@ -15,7 +23,7 @@ python -m pip install --user -r requirements.txt
 
 ```
 cd ~/Projects/agaric/pomodoroprompt/
-python3 pomodoroprompt.py
+python pomodoroprompt.py
 ```
 
 See the `logs/` folder for daily, one-pomodoro-at-a-time time logs.
@@ -37,4 +45,4 @@ If you run `python pomodoroprompt.py` and get:
 SyntaxError: invalid syntax
 ```
 
-You need to specify Python 3: `python pomodoroprompt.py`
+You need to specify Python 3: `python3 pomodoroprompt.py`