diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index e3fa0f2aee..b397fb6344 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -10,3 +10,5 @@ c5b7900eb40a48e2877db4994a2b2f8d755531e4
 1cf80035f66badcc8b4e667cbfd13cb483a7a773
 # Upgrade to OCamlformat 0.26.1
 1c015488b8d32a0571eaa144a92ab4725bad0b85
+# Upgrade to OCamlformat 0.27.0
+3c05a814d23329b237fd213ff162006a48b30f6a