diff --git a/CHANGES.md b/CHANGES.md
index 88356e3..04db6eb 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,9 @@ Changes
 =======
 
 - Added support for Python 3.8
+- Added this file to the source distribution
+- Added files necessary for the tests to the source distribution
+- Fixed some deprecation warnings
 
 rgain3 1.0.0 (2020-01-06)
 -------------------------
diff --git a/MANIFEST.in b/MANIFEST.in
index e1342b3..e5cc818 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,10 @@
+include CHANGES.md
 include COPYING
 include MANIFEST.in
-include man/*
\ No newline at end of file
+include man/*
+include requirements.txt
+include test-requirements.txt
+include test/data/*.flac
+include test/data/*.mp3
+include tests.sh
+include tox.ini