diff --git a/pkgs/applications/science/math/qalculate-gtk/default.nix b/pkgs/applications/science/math/qalculate-gtk/default.nix
index 0ba584875e51..09b470141550 100644
--- a/pkgs/applications/science/math/qalculate-gtk/default.nix
+++ b/pkgs/applications/science/math/qalculate-gtk/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "qalculate";
     repo = "qalculate-gtk";
     rev = "v${finalAttrs.version}";
-    sha256 = "sha256-rQxOOxM4TazkDs/H3KEPbdo6WBl0ptyAlZwv8nnGMss=";
+    hash = "sha256-rQxOOxM4TazkDs/H3KEPbdo6WBl0ptyAlZwv8nnGMss=";
   };
 
   hardeningDisable = [ "format" ];
diff --git a/pkgs/development/libraries/libqalculate/default.nix b/pkgs/development/libraries/libqalculate/default.nix
index 2502673b398e..84623e7459fc 100644
--- a/pkgs/development/libraries/libqalculate/default.nix
+++ b/pkgs/development/libraries/libqalculate/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "qalculate";
     repo = "libqalculate";
     rev = "v${finalAttrs.version}";
-    sha256 = "sha256-6W65dg2pZeio3ZVgVLQZrz/eReYcPiYf52zjcaRfE8E=";
+    hash = "sha256-6W65dg2pZeio3ZVgVLQZrz/eReYcPiYf52zjcaRfE8E=";
   };
 
   outputs = [ "out" "dev" "doc" ];