diff --git a/readme.md b/readme.md
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@@ -415,6 +415,7 @@
 - [Static Analysis & Code Quality](https://github.com/analysis-tools-dev/static-analysis#readme)
 - [Information Retrieval](https://github.com/harpribot/awesome-information-retrieval#readme) - Learn to develop your own search engine.
 - [Quantum Computing](https://github.com/desireevl/awesome-quantum-computing#readme) - Computing which utilizes quantum mechanics and qubits on quantum computers.
+- [Theoretical Computer Science](https://github.com/mostafatouny/awesome-theoretical-computer-science#readme) - The interplay of computer science and pure mathematics, distinguished by its emphasis on mathematical rigour and technique.
 
 ## Big Data