diff --git a/.gitignore b/.gitignore
index 14076c0..d1045fa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ zope.interface-3.6.1.tar.gz
 /zope.interface-4.2.0.tar.gz
 /zope.interface-4.3.2.tar.gz
 /zope.interface-4.3.3.tar.gz
+/zope.interface-4.4.3.tar.gz
diff --git a/sources b/sources
index 37f050b..debdf68 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (zope.interface-4.3.3.tar.gz) = 5459d8122b8028b3bc79ec6964aa3e13a36a2aa10418c06008c80a77abe8e853cb9cb11ca5213bdcaa15649d435bf6550a0b7beba9f454dfc22d840eba752bc6
+SHA512 (zope.interface-4.4.3.tar.gz) = 29d9f3f1fe9af8a4ffb1e6d2f067bba1fa1bac7b02690ba8429985aa6ca76d3f337076bc8c48f39d0f338ccd855800b2f28b319a183a285191cc007bf8d9c9ad