diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 6252b3a5072..2bb09f63bb5 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -39287,7 +39287,8 @@ toolkit for Python.")
        (uri (pypi-uri "srt" version))
        (sha256
         (base32 "1h0cxlp66i6wlq3g6dg1f1nw0sipm9nfsy7qs47p9w548d833128"))))
-    (build-system python-build-system)
+    (build-system pyproject-build-system)
+    (native-inputs (list python-setuptools python-wheel))
     (home-page "https://github.com/cdown/srt")
     (synopsis "SRT parsing library")
     (description