diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd98e5c..010c0fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ### Added
 
-- (DataSource) → AmazonProductDataSource as first external data source
-- ProductDTO as data holder structure for data from external sources
-- Config for credential, base URLs etc.
-- FormattingUtil for formatting price strings
+- (DataSource) → AmazonProductDataSource as first external data source (#39)
+- ProductDTO as data holder structure for data from external sources (~ #39)
+- Config for credential, base URLs etc. (~ #39)
+- FormattingUtil for formatting price strings (~ #39)