diff --git a/README.md b/README.md
index 6885a898..858cb07b 100644
--- a/README.md
+++ b/README.md
@@ -320,6 +320,14 @@ generates the following diagram (via PlantUML):
 
 The build-in test cases used for unit testing of the `clang-uml`, can be browsed [here](./docs/test_cases.md).
 
+## Acknowledgements
+This project relies on the following great tools:
+  * [libclang](https://clang.llvm.org/) - a C/C++ frontend for LLVM
+  * [cppast](https://github.com/foonathan/cppast) - high-level C++ API for libclang
+  * [PlantUML](https://plantuml.com/) - language and diagram for generating UML diagrams
+  * [Catch2](https://github.com/catchorg/Catch2) - C++ unit test framework
+  * [glob](https://github.com/p-ranav/glob) - Unix style path expansion for C++
+  * [CLI11](https://github.com/CLIUtils/CLI11) - command line parser for C++
 
 ## LICENSE