From 97c059ad98aed9e75ce5971e586fb1ee08302cac Mon Sep 17 00:00:00 2001
From: James Rasell <jrasell@ibm.com>
Date: Wed, 3 Dec 2025 07:36:10 +0000
Subject: [PATCH 1/2] build: update toolchain to Go 1.25.5

---
 .go-version                      | 2 +-
 contributing/README.md           | 2 +-
 scripts/linux-priv-go.sh         | 4 ++--
 scripts/release/mac-remote-build | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/.go-version b/.go-version
index 5bb76b575e1..b45fe310644 100644
--- a/.go-version
+++ b/.go-version
@@ -1 +1 @@
-1.25.3
+1.25.5
diff --git a/contributing/README.md b/contributing/README.md
index c0d57a004ba..c204ce525b7 100644
--- a/contributing/README.md
+++ b/contributing/README.md
@@ -52,7 +52,7 @@ A development environment is supplied via Vagrant to make getting started easier
 
 Developing without Vagrant
 ---
-1. Install [Go 1.25.3+](https://golang.org/) *(Note: `gcc-go` is not supported)*
+1. Install [Go 1.25.5+](https://golang.org/) *(Note: `gcc-go` is not supported)*
 1. Clone this repo
    ```sh
    $ git clone https://github.com/hashicorp/nomad.git
diff --git a/scripts/linux-priv-go.sh b/scripts/linux-priv-go.sh
index 187fbff7fe4..b41a48e53ad 100755
--- a/scripts/linux-priv-go.sh
+++ b/scripts/linux-priv-go.sh
@@ -15,13 +15,13 @@ esac
 
 # Minimal effort to support amd64 and arm64 installs.
 ARCH=""
-case $(arch) in
+case $(arch) in 
     x86_64) ARCH="amd64" ;;
     aarch64) ARCH="arm64" ;;
 esac
 
 function install_go() {
-	local go_version="1.25.3"
+	local go_version="1.25.5"
 	local download="https://storage.googleapis.com/golang/go${go_version}.linux-${ARCH}.tar.gz"
 
 	if go version 2>&1 | grep -q "${go_version}"; then
diff --git a/scripts/release/mac-remote-build b/scripts/release/mac-remote-build
index ed7587bbdc3..8c5d02f3903 100755
--- a/scripts/release/mac-remote-build
+++ b/scripts/release/mac-remote-build
@@ -56,7 +56,7 @@ REPO_PATH="${TMP_WORKSPACE}/gopath/src/github.com/hashicorp/nomad"
 mkdir -p "${TMP_WORKSPACE}/tmp"
 
 install_go() {
-  local go_version="1.25.3"
+  local go_version="1.25.5"
   local download=
 
   download="https://storage.googleapis.com/golang/go${go_version}.darwin-amd64.tar.gz"

From a8c1cc6944b8506ba743fae27dc1225915bc232c Mon Sep 17 00:00:00 2001
From: James Rasell <jrasell@ibm.com>
Date: Wed, 3 Dec 2025 07:53:56 +0000
Subject: [PATCH 2/2] changelog: Add entry for 27186

---
 .changelog/27186.txt | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 .changelog/27186.txt

diff --git a/.changelog/27186.txt b/.changelog/27186.txt
new file mode 100644
index 00000000000..b61da4f40d5
--- /dev/null
+++ b/.changelog/27186.txt
@@ -0,0 +1,3 @@
+```release-note:security
+build: Updated toolchain to Go 1.25.5
+```