diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 000000000..a076eb0c2
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,2 @@
+# Upgrade to Prettier 2.3.x, run prettier & trim whitespaces on yaml
+52fef3b58413d041c9e6c6204f9190bb52af8437
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 1f97ce9f8..ee10d31eb 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -43,6 +43,9 @@ Si l'historique des commits est trop volumineux, vous pouvez utiliser le paramè
 # Clone this repo on your computer
 git clone --depth 100 git@github.com:betagouv/mon-entreprise.git && cd mon-entreprise
 
+# Mettre à jour votre config git locale
+git config blame.ignoreRevsFile .git-blame-ignore-revs
+
 # Install the Javascript dependencies through Yarn
 yarn install