diff --git a/nixos/doc/manual/release-notes/rl-2411.section.md b/nixos/doc/manual/release-notes/rl-2411.section.md
index 0587cd1a295e..2b5e690420d9 100644
--- a/nixos/doc/manual/release-notes/rl-2411.section.md
+++ b/nixos/doc/manual/release-notes/rl-2411.section.md
@@ -340,9 +340,6 @@
 - `nix.channel.enable = false` no longer implies `nix.settings.nix-path = []`.
   Since Nix 2.13, a `nix-path` set in `nix.conf` cannot be overriden by the `NIX_PATH` configuration variable.
 
-- Buildkite Agents are now each running in their own private `/tmp`.
-  To return to the old behaviour, set `systemd.services.buildkite-agent-${name}.serviceConfig.PrivateTmp = false;`.
-
 ## Detailed migration information {#sec-release-24.11-migration}
 
 ### `sound` options removal {#sec-release-24.11-migration-sound}
diff --git a/nixos/modules/services/continuous-integration/buildkite-agents.nix b/nixos/modules/services/continuous-integration/buildkite-agents.nix
index eb7b7a170785..fc30172c6499 100644
--- a/nixos/modules/services/continuous-integration/buildkite-agents.nix
+++ b/nixos/modules/services/continuous-integration/buildkite-agents.nix
@@ -205,8 +205,6 @@ in
       serviceConfig = {
         ExecStart = "${cfg.package}/bin/buildkite-agent start --config ${cfg.dataDir}/buildkite-agent.cfg";
         User = "buildkite-agent-${name}";
-        # Workaround https://github.com/buildkite/agent/issues/2916
-        PrivateTmp = lib.mkDefault true;
         RestartSec = 5;
         Restart = "on-failure";
         TimeoutSec = 10;
diff --git a/pkgs/by-name/bu/buildkite-agent/package.nix b/pkgs/by-name/bu/buildkite-agent/package.nix
index 128813f7bea3..8da59b372413 100644
--- a/pkgs/by-name/bu/buildkite-agent/package.nix
+++ b/pkgs/by-name/bu/buildkite-agent/package.nix
@@ -13,16 +13,16 @@
 }:
 buildGoModule rec {
   pname = "buildkite-agent";
-  version = "3.76.2";
+  version = "3.77.0";
 
   src = fetchFromGitHub {
     owner = "buildkite";
     repo = "agent";
     rev = "v${version}";
-    sha256 = "sha256-XAMrc8HEdCGeI0l6u4n81xhiGkI39b7Poly5CP/b0R8=";
+    sha256 = "sha256-QsSCIAy0ekkZiqO/cFcPNNkXa3FLL3Z1LJoKsjzB6jw=";
   };
 
-  vendorHash = "sha256-0P6EXqQa6WxhjNJ4X6THvjJRK/UQvqXTv+7IJViFAQs=";
+  vendorHash = "sha256-xp836ZT2x20ZbkTEubhiZlLmK9n2F8mCSWZTHmAuu6A=";
 
   postPatch = ''
     substituteInPlace clicommand/agent_start.go --replace /bin/bash ${bash}/bin/bash