diff --git a/profiles/core/default.nix b/profiles/core/default.nix
index 3d35073..ac7f849 100644
--- a/profiles/core/default.nix
+++ b/profiles/core/default.nix
@@ -31,6 +31,8 @@ in
       nmap
       ripgrep
       whois
+
+      libqalculate
     ];
   };