diff --git a/src/MiniDocs/MiniDocs.class.st b/src/MiniDocs/MiniDocs.class.st
index b695e69..bb37ffa 100644
--- a/src/MiniDocs/MiniDocs.class.st
+++ b/src/MiniDocs/MiniDocs.class.st
@@ -60,7 +60,10 @@ MiniDocs class >> installYamlToJson [
 	"For the moment, only Gnu/Linux and Mac are supported.
 	IMPORTANT: Nimble, Nim's package manager should be installed, as this process doesn't verify its proper installation."
 	self yamlToJsonBinary exists ifTrue: [ ^ MiniDocs appFolder ].
-	Nimble install: 'commandeer'.
+	Nimble
+		install: 'yaml';
+		install: 'json'; 
+		install: 'commandeer'.
 	OSSUnixSubprocess new
 		command: 'nim';
 		arguments: {'c'. self yamlToJsonSourceCode fullName};