diff --git a/pkgs/development/tools/continuous-integration/buildkite-agent/default.nix b/pkgs/development/tools/continuous-integration/buildkite-agent/default.nix
index 4a402111b086..db1f2aeabc74 100644
--- a/pkgs/development/tools/continuous-integration/buildkite-agent/default.nix
+++ b/pkgs/development/tools/continuous-integration/buildkite-agent/default.nix
@@ -2,16 +2,16 @@
   makeWrapper, coreutils, git, openssh, bash, gnused, gnugrep }:
 buildGoModule rec {
   name = "buildkite-agent-${version}";
-  version = "3.28.1";
+  version = "3.29.0";
 
   src = fetchFromGitHub {
     owner = "buildkite";
     repo = "agent";
     rev = "v${version}";
-    sha256 = "sha256-5YOXYOAh/0fOagcqdK2IEwm5XDCxyfTeTzwBGtsQRCs=";
+    sha256 = "sha256-76yyqZi+ktcwRXo0ZIcdFJ9YCuHm9Te4AI+4meuhMNA=";
   };
 
-  vendorSha256 = "sha256-3UXZxeiL0WO4X/3/hW8ubL1TormGbn9X/k0PX+/cLuM=";
+  vendorSha256 = "sha256-6cejbCbr0Rn4jWFJ0fxG4v0L0xUM8k16cbACmcQ6m4o=";
 
   postPatch = ''
     substituteInPlace bootstrap/shell/shell.go --replace /bin/bash ${bash}/bin/bash