diff --git a/projects/riverbankcomputing.com/pyqt-builder/package.yml b/projects/riverbankcomputing.com/pyqt-builder/package.yml
index 0bc8e4fa..5cb63282 100644
--- a/projects/riverbankcomputing.com/pyqt-builder/package.yml
+++ b/projects/riverbankcomputing.com/pyqt-builder/package.yml
@@ -13,8 +13,15 @@ dependencies:
   python.org: ~3.11
   riverbankcomputing.com/sip: '*'
 build:
+  dependencies:
+    llvm.org: <17
+    gnu.org/make: '*'
   script:
     - python-venv.sh {{prefix}}/bin/pyqt-bundle
+  env:
+    linux:
+      CC: clang
+      AS: llvm-as
 provides:
   - bin/pyqt-bundle
 test: