diff --git a/var/spack/repos/builtin/packages/diffutils/package.py b/var/spack/repos/builtin/packages/diffutils/package.py
index d43c20933a..72721095c6 100644
--- a/var/spack/repos/builtin/packages/diffutils/package.py
+++ b/var/spack/repos/builtin/packages/diffutils/package.py
@@ -19,6 +19,7 @@ class Diffutils(AutotoolsPackage, GNUMirrorPackage):
     homepage = "https://www.gnu.org/software/diffutils/"
     gnu_mirror_path = "diffutils/diffutils-3.7.tar.xz"
 
+    version("3.9", sha256="d80d3be90a201868de83d78dad3413ad88160cc53bcc36eb9eaf7c20dbf023f1")
     version("3.8", sha256="a6bdd7d1b31266d11c4f4de6c1b748d4607ab0231af5188fc2533d0ae2438fec")
     version("3.7", sha256="b3a7a6221c3dc916085f0d205abf6b8e1ba443d4dd965118da364a1dc1cb3a26")
     version("3.6", sha256="d621e8bdd4b573918c8145f7ae61817d1be9deb4c8d2328a65cea8e11d783bd6")