diff --git a/build-constraints.yaml b/build-constraints.yaml
index cd1cce39..abb456ce 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1571,9 +1571,9 @@ packages:
 
     "Christoph Breitkopf <chbreitkopf@gmail.com> @bokesan":
         - IntervalMap
-        
+
     "Michele Lacchia <michelelacchia@gmail.com>":
-        # - argon
+        - argon >= 0.3
         - docopt
         - pathwalk