diff --git a/subjects/commits_stats/README.md b/subjects/commits_stats/README.md
index e3030e41..93210f86 100644
--- a/subjects/commits_stats/README.md
+++ b/subjects/commits_stats/README.md
@@ -8,7 +8,7 @@ Create two functions:
 - `commits_per_author`: which returns a hash map with the number of commits per author. The auditors will be identified by their GitHub login.
 - `commits_per_week`: which returns a hash map with the number of commits per week.
 
-> A week is represented by the a year followed by the number of the week. For example, January 1, 2020 is in week 1 of 2020 and will be represented by a `String` with the form `"2020-W1"`.
+> A week is represented by the year followed by the number of the week. For example, January 1, 2020 is in week 1 of 2020 and will be represented by a `String` with the form `"2020-W1"`.
 
 ### Expected functions