diff --git a/pkgs/tools/misc/parallel/default.nix b/pkgs/tools/misc/parallel/default.nix
index d1a786b3b916..32db897ae0ff 100644
--- a/pkgs/tools/misc/parallel/default.nix
+++ b/pkgs/tools/misc/parallel/default.nix
@@ -1,11 +1,11 @@
 { fetchurl, stdenv, perl, makeWrapper, procps }:
 
 stdenv.mkDerivation rec {
-  name = "parallel-20191222";
+  name = "parallel-20200122";
 
   src = fetchurl {
     url = "mirror://gnu/parallel/${name}.tar.bz2";
-    sha256 = "0xvw578440s9cc382n7z2l8npj30nwr6wwmkyxn2pj1pcszfjagy";
+    sha256 = "070cv3b1ja8lmn2a5h1ry6b5y35jpm4z5r9yv9nb5kd5im11wvqi";
   };
 
   nativeBuildInputs = [ makeWrapper ];