diff --git a/pkgs/shells/zsh/oh-my-zsh/default.nix b/pkgs/shells/zsh/oh-my-zsh/default.nix
index ac4594be05ab..e53ee1394edf 100644
--- a/pkgs/shells/zsh/oh-my-zsh/default.nix
+++ b/pkgs/shells/zsh/oh-my-zsh/default.nix
@@ -4,13 +4,13 @@
 { stdenv, fetchgit }:
 
 stdenv.mkDerivation rec {
-  version = "2020-01-01";
+  version = "2020-01-04";
   pname = "oh-my-zsh";
-  rev = "ca627655dbd1d110dbea34ec4a8c1964a1da83d2";
+  rev = "78b07e92fd4a3a5e1f92ee4e3d680c39b72c2245";
 
   src = fetchgit { inherit rev;
     url = "https://github.com/ohmyzsh/ohmyzsh";
-    sha256 = "1hr7qaad8mr8bvx54ql5q97da6fhppdgk087mc5flygky6vf4yp6";
+    sha256 = "1s5vr89dxgm1g3jcqybx4an80x0gmda4lh8y36r2dafxwmb09qmk";
   };
 
   pathsToLink = [ "/share/oh-my-zsh" ];