diff --git a/pkgs/tools/text/mawk/default.nix b/pkgs/tools/text/mawk/default.nix
index 81d11e2aae7..8ad5cd16aaf 100644
--- a/pkgs/tools/text/mawk/default.nix
+++ b/pkgs/tools/text/mawk/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "mawk-1.3.4-20200106";
+  name = "mawk-1.3.4-20200120";
 
   src = fetchurl {
     urls = [
       "ftp://ftp.invisible-island.net/mawk/${name}.tgz"
       "https://invisible-mirror.net/archives/mawk/${name}.tgz"
     ];
-    sha256 = "1dhmn0l1c122a4bb07a1lwzrzpjdhsbdbllb1a9gwvv2lw5j9qgi";
+    sha256 = "0dw2icf8bnqd9y0clfd9pkcxz4b2phdihwci13z914mf3wgcvm3z";
   };
 
   meta = with stdenv.lib; {