diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 234bab5e..f9121b26 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -100,7 +100,7 @@ In order to ensure stability and no regressions are introduced while developing
 
     These are the best tests to catch regressions, and to verify everything behaves as expected.
 
-    They use MySQL as the database engine, and include some fixtures that ensure the same data exists at the beginning of the execution.
+    They use Postgres as the database engine, and include some fixtures that ensure the same data exists at the beginning of the execution.
 
 * **CLI tests**: *TBD. Once included, its purpose will be the same as API tests, but running through the command line*