diff --git a/pkgs/shells/zsh/oh-my-zsh/default.nix b/pkgs/shells/zsh/oh-my-zsh/default.nix
index 38439b4427c8..53a4d4b9087d 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 = "2019-07-01";
+  version = "2019-07-13";
   name = "oh-my-zsh-${version}";
-  rev = "b259cdf7e71ad6c3cc1a66a48c6c79cf63f38590";
+  rev = "17f4cfca99398cb5511557b8515a17bf1bf2948a";
 
   src = fetchgit { inherit rev;
     url = "https://github.com/robbyrussell/oh-my-zsh";
-    sha256 = "1vk9misnvjs1lxlwzy4ld30vh67nhghzra1y5ckgxa019l9cvann";
+    sha256 = "19f29mrvnhvndvl48fd5kdiixfs0apmb27h4mck5v95p6yw27b6f";
   };
 
   pathsToLink = [ "/share/oh-my-zsh" ];