diff --git a/README.md b/README.md
index 935b354..a175c85 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,31 @@
 # TensorContractor
 
 ## Build
 
+### Dependencies
+
+This code use the MPIR lib [https://mpir.org/index.html](https://mpir.org/index.html).
+
+In order to compile it, you can download it from the download page. Download the .zip file
+such that it contains the `./configure` script.
+
+Run: `./configure --enable-cxx --prefix=YOUR_INSTALLATION_PATH`
+Run: `make`
+Run: `make check`
+Run: `make install`
+
+Note: you may need to install (or compile) `yasm`.
+
+### Compilation
+
 Go to `bin/`.
 
 Run CMake:
 ```
 cmake ..
 ```
 
 Run Make:
 ```
 make
 ```
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