diff --git a/README.md b/README.md
index 0e911db..4d9a80c 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ branch.
 Installation
 ------------
 
-As the only prerequisites, [Python (at least version 3.6)][python] must be
+As the only prerequisite, [Python (at least version 3.6)][python] must be
 installed. An added bonus points, if [git][git] is also available.
 
 The installation should be performed in a python virtual environment. A virtual