diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ef2ce297bbc3..f2bc56aea515 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15004,7 +15004,9 @@ with pkgs;
   inherit (gnome3) evince;
   evolution_data_server = gnome3.evolution_data_server;
 
-  keepass = callPackage ../applications/misc/keepass { };
+  keepass = callPackage ../applications/misc/keepass { 
+    buildDotnetPackage = buildDotnetPackage.override { mono = mono54; };
+  };
 
   keepass-keeagent = callPackage ../applications/misc/keepass-plugins/keeagent { };