diff --git a/pkgs/shells/zsh/oh-my-zsh/default.nix b/pkgs/shells/zsh/oh-my-zsh/default.nix
index 7c402b4733f..37d75f78e0e 100644
--- a/pkgs/shells/zsh/oh-my-zsh/default.nix
+++ b/pkgs/shells/zsh/oh-my-zsh/default.nix
@@ -92,7 +92,7 @@ stdenv.mkDerivation rec {
       if [ ! "null" = "$latestSha" ]; then
         nixpkgs="$(git rev-parse --show-toplevel)"
         default_nix="$nixpkgs/pkgs/shells/zsh/oh-my-zsh/default.nix"
-        latestDate="$(curl -L -s https://api.github.com/repos/ohmyzsh/ohmyzsh/commits/$latestSha | jq '.commit.author.date' | sed 's|"\(.*\)T.*|\1|g')"
+        latestDate="$(curl -L -s https://api.github.com/repos/ohmyzsh/ohmyzsh/commits/$latestSha | jq '.commit.committer.date' | sed 's|"\(.*\)T.*|\1|g')"
         update-source-version oh-my-zsh "$latestSha" --version-key=rev
         update-source-version oh-my-zsh "$latestDate" --ignore-same-hash
         nixfmt "$default_nix"