diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index afe5fe7..75fe764 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -33,7 +33,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
       - name: Check Go module tidiness
         shell: bash
         run: |
@@ -55,7 +55,7 @@ jobs:
     name: Test
     strategy:
       matrix:
-        go-version: [ 1.26.x ]
+        go-version: [ 1.27.x ]
         platform: [ ubuntu-latest, macos-latest ]
     runs-on: ${{ matrix.platform }}
     steps:
@@ -77,7 +77,7 @@ jobs:
     name: Test Windows
     strategy:
       matrix:
-        go-version: [ 1.26.x ]
+        go-version: [ 1.27.x ]
         platform: [ windows-latest ]
     runs-on: ${{ matrix.platform }}
     steps:
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 7901af3..3f8a221 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -63,7 +63,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
       - name: Verify git and git-lfs
         run: |
           git --version
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index be80cad..6e922bc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -42,7 +42,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
       - name: Determine version
         id: version
         run: |
diff --git a/Dockerfile b/Dockerfile
index 3a9be13..1fb9a38 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1
-FROM golang:1.26.10-alpine3.24@sha256:87c65a688975c0b1d4585d204874c45ca78354670e3a5f11368c5a492303d696 AS builder
+FROM golang:1.27.4-alpine3.24@sha256:0a5f7fe796599ff487605987432e7619ae45beeb2fba4c2ce0b907879932aebf AS builder
 WORKDIR /src
 COPY go.mod go.sum ./
 RUN go mod download
diff --git a/go.mod b/go.mod
index da3e907..80c2e1f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module unknwon.dev/git-lfs-server
 
-go 1.26
+go 1.27
 
 require (
 	charm.land/lipgloss/v2 v2.0.3