diff --git a/Readme.md b/Readme.md
index 7099e3964..e3ae42077 100644
--- a/Readme.md
+++ b/Readme.md
@@ -60,3 +60,9 @@ Source code uses Mojang mappings.
 
 The source code can be 'created' with the `./eclipse` command and can be found in the following path:\
 `minecraft-lod-mod\build\fg_cache\mcp\ VERSION \joined\ RANDOM_STRING \patch\output.jar`
+
+
+## Open Source Acknowledgements
+
+XZ for Java (data compression)
+https://tukaani.org/xz/java.html
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