diff --git a/repository/BaselineOfFossil/BaselineOfFossil.class.st b/repository/BaselineOfFossil/BaselineOfFossil.class.st
index 11812e3..564df24 100644
--- a/repository/BaselineOfFossil/BaselineOfFossil.class.st
+++ b/repository/BaselineOfFossil/BaselineOfFossil.class.st
@@ -15,7 +15,10 @@ BaselineOfFossil >> baseline: spec [
 		for: #common
 		do: [ 
 			"Dependencies"
-			spec baseline: 'NeoJSON' with: [ spec repository: 'github://svenvc/NeoJSON/repository' ].
+			spec 
+				baseline: 'NeoJSON' with: [ spec repository: 'github://svenvc/NeoJSON/repository' ];
+				baseline: 'OSSubprocess' with: [ spec repository: 'github://pharo-contributions/OSSubprocess:v1.0.1/repository'].
+			
 			
 			"This package"
 			spec baseline: 'Fossil' with: [ spec repository: 'http://smalltalkhub.com/mc/Offray/Fossil' ].