diff --git a/pkgs/by-name/bl/blueprint-compiler/package.nix b/pkgs/by-name/bl/blueprint-compiler/package.nix
index 8482a5a965f4..f6c53be3fd4c 100644
--- a/pkgs/by-name/bl/blueprint-compiler/package.nix
+++ b/pkgs/by-name/bl/blueprint-compiler/package.nix
@@ -31,8 +31,10 @@ stdenv.mkDerivation (finalAttrs: {
   '';
 
   nativeBuildInputs = [
+    gobject-introspection
     meson
     ninja
+    python3
     wrapGAppsNoGuiHook
   ];
 
@@ -86,6 +88,8 @@ stdenv.mkDerivation (finalAttrs: {
     };
   };
 
+  strictDeps = true;
+
   meta = {
     description = "Markup language for GTK user interface files";
     mainProgram = "blueprint-compiler";