diff --git a/pkgs/shells/zsh/oh-my-zsh/default.nix b/pkgs/shells/zsh/oh-my-zsh/default.nix
index 47a7b8c2af5e..8fc189fbf157 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 = "2020-08-18";
+  version = "2020-08-20";
   pname = "oh-my-zsh";
-  rev = "89400f156a6e1d64acaeab9ec265f54cdab91817";
+  rev = "03b6a72576cb0f0b53abde25d409e8026d5c4ee9";
 
   src = fetchgit { inherit rev;
     url = "https://github.com/ohmyzsh/ohmyzsh";
-    sha256 = "1k659480dv7wi9rz1zdq8w0nysgjsm58jy2kzp3rnxaxm7fkzivm";
+    sha256 = "0bm043r3pffbv74drrv2xa66rsadrrsayscwwnfgp24svdmx7a6z";
   };
 
   pathsToLink = [ "/share/oh-my-zsh" ];