diff --git a/.gitignore b/.gitignore
index ce1fa1e..d858279 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,3 +45,4 @@ fonttools-2.3.tar.gz
 /fonttools-3.25.0.zip
 /fonttools-3.26.0.zip
 /fonttools-3.27.1.zip
+/fonttools-3.28.0.zip
diff --git a/sources b/sources
index 9d78a61..49e93d2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (fonttools-3.27.1.zip) = a88d54f674886afca423e3f9856f26cfa12e4a2bd07b6a3542d2a90bb2377ddf595e974417e243b16625365899a343be3561d61c12de064cb05f012879ef15db
+SHA512 (fonttools-3.28.0.zip) = 0e495ded98419d17db9a5c1b0334771d1f2434dcf5b74b2885459cbd6b5a8354aee076eea2ac9a771323ed2e0766134f7d167bef1f7cf388780170d24c66e91f