diff --git a/pkgs/servers/xmpp/ejabberd/default.nix b/pkgs/servers/xmpp/ejabberd/default.nix
index 2fa1c913e27..1aca12aec48 100644
--- a/pkgs/servers/xmpp/ejabberd/default.nix
+++ b/pkgs/servers/xmpp/ejabberd/default.nix
@@ -24,12 +24,12 @@ let
   ctlpath = lib.makeBinPath [ bash gnused gnugrep coreutils util-linux procps ];
 
 in stdenv.mkDerivation rec {
-  version = "20.03";
+  version = "20.12";
   pname = "ejabberd";
 
   src = fetchurl {
     url = "https://www.process-one.net/downloads/downloads-action.php?file=/${version}/${pname}-${version}.tgz";
-    sha256 = "0i013l9cygmgainfid298n6llhs3mblfklry3jw2a6irvhffym0s";
+    sha256 = "sha256-nZxdYXRyv4UejPLHNT/p6CrvW22Koo7rZSi96KRjqFQ=";
   };
 
   nativeBuildInputs = [ fakegit ];
@@ -76,7 +76,7 @@ in stdenv.mkDerivation rec {
 
     outputHashMode = "recursive";
     outputHashAlgo = "sha256";
-    outputHash = "0xwgi9hy6y0m8mwznl6px98kdmkcxg98k62zgqbaqd4paks5zwqa";
+    outputHash = "sha256-0/hBgA+9rsDOBcvbROSpc5Xnw4JkYpuLCl2V+lJnieY=";
   };
 
   configureFlags =