diff --git a/README.md b/README.md
index afa2932196cec4a0f29224e9256d8f10340e6540..3902c7e9c9cf973ac3a562783f975e0afdb548e3 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,12 @@
 This is a fork of the [C(anonical) Scan Matcher](https://github.com/AndreaCensi/csm).
 
+# Dependencies
+
+**GSL**
+```sh
+sudo apt install libgsl-dev
+```
+
 # Installation
 
 Clone the repository in your chosen directory. In a terminal: