diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 39ce60106f..6291318398 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -125,6 +125,10 @@ Questions on architectural best practices will be guided by the principles set f
 ### Automated Test coverage
 All code submissions must be accompanied by appropriate automated tests.  The goal is to provide confidence in the code’s robustness, while avoiding redundant tests.
 
+>**Important** 
+> The [`libsodium`](https://download.libsodium.org/doc/installation) library must be installed to run `./gradlew integrationTest`. 
+
+
 ### Pull Requests
 
 The process described here has several goals: