diff --git a/ChangeLog.md b/ChangeLog.md
index 68dab967..81990a7b 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,4 +1,5 @@
 # Change Log
+All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased](https://github.com/nlohmann/json/tree/HEAD)
 
diff --git a/Makefile b/Makefile
index 83702afe..14e3ae9b 100644
--- a/Makefile
+++ b/Makefile
@@ -68,3 +68,4 @@ json_benchmarks: benchmarks/benchmarks.cpp benchmarks/benchpress.hpp benchmarks/
 ChangeLog.md:
 	github_changelog_generator -o ChangeLog.md --simple-list -t 6b6238b83152d6eefafe1b0dbb1e571fcf2e88e9 --release-url https://github.com/nlohmann/json/releases/tag/%s
 	gsed -i 's|https://github.com/nlohmann/json/releases/tag/HEAD|https://github.com/nlohmann/json/tree/HEAD|' ChangeLog.md
+	gsed -i '2i All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).' ChangeLog.md