diff --git a/python3.11-django-pgtrigger.nix b/python3.11-django-pgtrigger.nix
index f015a0c..b4a2c64 100644
--- a/python3.11-django-pgtrigger.nix
+++ b/python3.11-django-pgtrigger.nix
@@ -13,7 +13,7 @@ mkDerivation {
 		owner = "ambitioneng" ;
 		repo = "django-pgtrigger" ;
 		rev = "fa2155e630da8752a22a6c4ab81eb0e19f5979eb" ;
-		hash = "" ;
+		hash = "sha256-K+JjAermtSiVUnPbtyabpQN2ghnRIkwt329Ytp8zeQk=" ;
 	} ;
 	
 	installPhase = ''