diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index fa8dc86b4..740c6222c 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -80,3 +80,8 @@ f935a4ede0672a17e132b0f3478e52b0030c0af1
 
 # 2013-03-20 License headers for source files.
 6e9bcfd1d520d2296a0a61416c0b5338856ce8d0
+
+# License headers.
+f08d58dc985f6a3a0eced59569aa49c519a9b150
+e9cce58a1f660c08b480df15ea8d8b7f203f9d87
+4047f1ba077f9c74d291e19dca830afd02e51287