diff --git a/pkgs/development/libraries/libqalculate/default.nix b/pkgs/development/libraries/libqalculate/default.nix
index 0f7757007005..bb70ffcd32a5 100644
--- a/pkgs/development/libraries/libqalculate/default.nix
+++ b/pkgs/development/libraries/libqalculate/default.nix
@@ -3,13 +3,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libqalculate";
-  version = "3.22.0";
+  version = "4.0.0";
 
   src = fetchFromGitHub {
     owner = "qalculate";
     repo = "libqalculate";
     rev = "v${version}";
-    sha256 = "sha256-yj6adBP9nZLXZVg62bYenfuiMeyULEql25KbDen9ljA=";
+    sha256 = "sha256-aRHwkdAbM164diIAIyBp1Kt6u/GLyCWTtwF4eFaWbGU=";
   };
 
   outputs = [ "out" "dev" "doc" ];