diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index fd153ca94fe4186d3612bda8d14165c718c1e406..3758eed3a3d15ffc7309a80672c2789594775ea3 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -3024,16 +3024,14 @@ (define python2-numpy-bootstrap
 (define-public python2-fastlmm
   (package
     (name "python2-fastlmm")
-    (version "0.2.14")
+    (version "0.2.21")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append
-             "https://pypi.python.org/packages/source/f/fastlmm"
-             "/fastlmm-" version ".zip"))
+       (uri (pypi-uri "fastlmm" version ".zip"))
        (sha256
         (base32
-         "023sydkrc3yxad2bycar02jfswwlh4199kafzhf2bssyx2c3xa0l"))))
+         "1q8c34rpmwkfy3r4d5172pzdkpfryj561897z9r3x22gq7813x1m"))))
     (build-system python-build-system)
     (arguments
      `(#:python ,python-2)) ; only Python 2.7 is supported