diff --git a/repository/BaselineOfGrafoscopioUtils/BaselineOfGrafoscopioUtils.class.st b/repository/BaselineOfGrafoscopioUtils/BaselineOfGrafoscopioUtils.class.st
index 122fef6..b9c3e34 100644
--- a/repository/BaselineOfGrafoscopioUtils/BaselineOfGrafoscopioUtils.class.st
+++ b/repository/BaselineOfGrafoscopioUtils/BaselineOfGrafoscopioUtils.class.st
@@ -11,8 +11,12 @@ BaselineOfGrafoscopioUtils >> baseline: spec [
 	spec
 		for: #common 
 		do: [ 
-			"Dependencies" 
+			"Dependencies"
+			spec baseline: 'PetitParser' with: [ spec repository: 'github://moosetechnology/PetitParser/src' ]. 
 			self fossil: spec.
+			
+			"Groups"
+			spec group: 'PetitParser' with: #('Minimal' 'Indent' 'YAML'). 
 	
 			"Packages"
 			spec package: 'Grafoscopio-Utils' with:  [ spec requires: #('Fossil') ]