diff --git a/pkgs/applications/misc/memo/default.nix b/pkgs/applications/misc/memo/default.nix
index 7d48b61793ca..1551eebb3c64 100644
--- a/pkgs/applications/misc/memo/default.nix
+++ b/pkgs/applications/misc/memo/default.nix
@@ -1,4 +1,4 @@
-{ fetchFromGitHub, silver-searcher, tree, man, stdenv,
+{ fetchFromGitHub, ag, tree, man, stdenv, 
   pandocSupport ? true, pandoc ? null
   , ... }:
 
@@ -8,13 +8,13 @@ stdenv.mkDerivation rec {
 
   name = "memo-${version}";
 
-  version = "0.4";
+  version = "0.5";
 
   src = fetchFromGitHub {
     owner  = "mrVanDalo";
     repo   = "memo";
     rev    = "${version}";
-    sha256 = "06999nps46dxrjakvpin1d2zvfpjil69hb3bxagq29icalag3y2z";
+    sha256 = "1kq8hmq4lgvkk717nhmdryr90g61xm0jm7y8dzya8jsxsn531gm8";
   };
 
   installPhase = let
@@ -23,15 +23,16 @@ stdenv.mkDerivation rec {
     else
       "#pandoc_cmd=pandoc";
   in ''
-    mkdir -p $out/{bin,share/man/man1,share/bash-completion/completions}
+    mkdir -p $out/{bin,share/man/man1,share/bash-completion/completions,share/zsh/site-functions}
     substituteInPlace memo \
-      --replace "ack_cmd=ack"       "ack_cmd=${silver-searcher}/bin/ag" \
+      --replace "ack_cmd=ack"       "ack_cmd=${ag}/bin/ag" \
       --replace "tree_cmd=tree"     "tree_cmd=${tree}/bin/tree" \
       --replace "man_cmd=man"       "man_cmd=${man}/bin/man" \
       --replace "pandoc_cmd=pandoc" "${pandocReplacement}"
     mv memo $out/bin/
     mv doc/memo.1 $out/share/man/man1/memo.1
-    mv completion/memo.bash $out/share/bash-completion/completions/memo.sh
+    mv completion/bash/memo.sh $out/share/bash-completion/completions/memo.sh
+    mv completion/zsh/_memo    $out/share/zsh/site-functions/_memo
   '';
 
   meta = {