diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index ac3f88c3..72d74983 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -7,7 +7,7 @@ Always reference these instructions first and fallback to search or bash command
 ## Working Effectively
 
 **Prerequisites:**
-- Go >= 1.21 (currently uses Go 1.24.5)
+- Go >= 1.27 (currently uses Go 1.27.1)
 - Helm v3 (tested with v3.17.4 and v3.18.6)
 
 **Build Process:**
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index ae351ce9..6a0975fa 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -21,4 +21,4 @@ jobs:
           go-version-file: 'go.mod'
       - uses: golangci/golangci-lint-action@v9
         with:
-          version: v2.12.2
+          version: v2.14.0
diff --git a/Dockerfile.release b/Dockerfile.release
index b325fbe2..e7cfd8ce 100644
--- a/Dockerfile.release
+++ b/Dockerfile.release
@@ -1,4 +1,4 @@
-FROM golang:1.26.4
+FROM golang:1.27.1
 
 # See https://github.com/cli/cli/blob/trunk/docs/install_linux.md#debian-ubuntu-linux-raspberry-pi-os-apt
 # for the latest gh install instructions when the below didn't work
diff --git a/README.md b/README.md
index a5c341df..492ff14e 100644
--- a/README.md
+++ b/README.md
@@ -104,7 +104,7 @@ curl -L $TARBALL_URL | tar -C $(helm home)/plugins/diff --strip-components=1 -xz
 
 ### From Source
 #### Prerequisites
- - GoLang `>= 1.21`
+ - GoLang `>= 1.27`
 
 Make sure you do not have a version of `helm-diff` installed. You can remove it by running `helm plugin uninstall diff`
 
diff --git a/go.mod b/go.mod
index 208663da..6cf56575 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/databus23/helm-diff/v3
 
-go 1.26.4
+go 1.27.1
 
 require (
 	github.com/Masterminds/semver/v3 v3.5.0