diff --git a/gnu/packages/python-science.scm b/gnu/packages/python-science.scm
index 10fb2403e6..d2c4caac3a 100644
--- a/gnu/packages/python-science.scm
+++ b/gnu/packages/python-science.scm
@@ -73,8 +73,7 @@
        ("python-matplotlib" ,python-matplotlib)
        ("python-pyparsing" ,python-pyparsing)))
     (inputs
-     `(("lapack" ,lapack)
-       ("openblas" ,openblas)
+     `(("openblas" ,openblas)
        ("pybind11" ,pybind11)))
     (native-inputs
      `(("python-cython" ,python-cython)
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 744648b9f3..7ff7c1e4cc 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014, 2015, 2016, 2019 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2017, 2021 Eric Bavier <bavier@posteo.net>
@@ -4950,8 +4950,7 @@ between language specification and implementation aspects.")
          "1ak9dmjja0q90a7fsxli51ypcwssh8c4pb6f8wkrsnf2xgdk6dy9"))))
     (build-system python-build-system)
     (inputs
-     `(("openblas" ,openblas)
-       ("lapack" ,lapack)))
+     `(("openblas" ,openblas)))
     (native-inputs
      `(("python-cython" ,python-cython)
        ("python-pytest" ,python-pytest)