diff --git a/pkgs/tools/security/flare-floss/default.nix b/pkgs/tools/security/flare-floss/default.nix
index c301a90a5567..841858517875 100644
--- a/pkgs/tools/security/flare-floss/default.nix
+++ b/pkgs/tools/security/flare-floss/default.nix
@@ -10,7 +10,7 @@ let
         version = "4.4.2";
         src = o.src.override {
           inherit version;
-          sha256 = "sha256-46YvBSAXJEDKDcyCN0kxk4Ljd/N/FAoLme9F/suEv+c=";
+          hash = "sha256-46YvBSAXJEDKDcyCN0kxk4Ljd/N/FAoLme9F/suEv+c=";
         };
       });
 
@@ -19,7 +19,7 @@ let
         version = "2.5.1";
         src = o.src.override {
           inherit version;
-          sha256 = "sha256-EJzVhcrEEpf3EQPDxCrG73N58peI61TLdRvlpmO7I1o=";
+          hash = "sha256-EJzVhcrEEpf3EQPDxCrG73N58peI61TLdRvlpmO7I1o=";
         };
       });
     };
@@ -34,7 +34,7 @@ py.pkgs.buildPythonPackage rec {
     repo = "flare-floss";
     rev = "v${version}";
     fetchSubmodules = true; # for tests
-    sha256 = "sha256-V4OWYcISyRdjf8x93B6h2hJwRgmRmk32hr8TrgRDu8Q=";
+    hash = "sha256-V4OWYcISyRdjf8x93B6h2hJwRgmRmk32hr8TrgRDu8Q=";
   };
 
   postPatch = ''