diff --git a/docs/installation.md b/docs/installation.md
index 1b7f680..3c9759e 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -2,8 +2,19 @@
 
 ## Requirements
 
-The core of Kami, `libkami` has no requirements beyond a modern C++ compiler.  However, both the examples provided and 
-the 
+The core of Kami, `libkami`, has no requirements beyond a modern C++ compiler. However, both the examples provided and
+the unit tests provided rely on three additional C++ packages:
+
+* cli11/1.9.1
+* spdlog/1.8.5
+* fmt/7.1.3
+
+[`CLI11`](https://cliutils.github.io/CLI11/) provides a command line interface for each of the utilities that makeup the
+examples and test suite.  [`spdlog`](https://github.com/gabime/spdlog)
+provides a uniform output interface. Coupled with a command line option to set the output level, `spdlog` allows the
+unit tests and example programs to provide variable output levels depending on the users needs.
+Finally, [`fmt`](https://fmt.dev/) is required by
+`spdlog` for simple and easy string formatting.
 
 ## Compiling