diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 2ffe7299dfad8..ff82bbc5791ca 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -12,7 +12,7 @@
 	"features": {
 		"ghcr.io/devcontainers/features/docker-in-docker:2": {},
 		"ghcr.io/devcontainers/features/go:1": {
-			"version": "1.26.5"
+			"version": "1.26.6"
 		}
 	},
 
diff --git a/.github/actions/install-go/action.yml b/.github/actions/install-go/action.yml
index 63f87e414f5aa..66e057d49b4da 100644
--- a/.github/actions/install-go/action.yml
+++ b/.github/actions/install-go/action.yml
@@ -3,7 +3,7 @@ description: "Reusable action to install Go, so there is one place to bump Go ve
 inputs:
   go-version:
     required: true
-    default: "1.26.5"
+    default: "1.26.6"
     description: "Go version to install"
 
 runs:
diff --git a/.github/workflows/api-release.yml b/.github/workflows/api-release.yml
index 4b18fb3b7f246..79c450e153af7 100644
--- a/.github/workflows/api-release.yml
+++ b/.github/workflows/api-release.yml
@@ -6,7 +6,7 @@ on:
 name: API Release
 
 env:
-  GO_VERSION: "1.26.5"
+  GO_VERSION: "1.26.6"
 
 permissions: # added using https://github.com/step-security/secure-workflows
   contents: read
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 738ee5c91f215..fd7ee0a888682 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -201,7 +201,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, ubuntu-24.04-arm, macos-latest, windows-latest]
-        go-version: ["1.26.5"] # 1.25 is not supported due to k8s 1.36 requiring 1.26
+        go-version: ["1.26.6"] # 1.25 is not supported due to k8s 1.36 requiring 1.26
         exclude:
           - os: ${{ github.event.repository.private && 'ubuntu-24.04-arm' || '' }}
     steps:
diff --git a/.github/workflows/release/Dockerfile b/.github/workflows/release/Dockerfile
index 87996efb6c75f..c9cfc1bf1adbc 100644
--- a/.github/workflows/release/Dockerfile
+++ b/.github/workflows/release/Dockerfile
@@ -14,7 +14,7 @@
 
 ARG UBUNTU_VERSION=22.04
 ARG BASE_IMAGE=ubuntu:${UBUNTU_VERSION}
-ARG GO_VERSION=1.26.5
+ARG GO_VERSION=1.26.6
 ARG GO_IMAGE=golang:${GO_VERSION}
 FROM --platform=$BUILDPLATFORM $GO_IMAGE AS go
 FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.6.1@sha256:923441d7c25f1e2eb5789f82d987693c47b8ed987c4ab3b075d6ed2b5d6779a3 AS xx
diff --git a/contrib/Dockerfile.test b/contrib/Dockerfile.test
index b5b7093740996..5268d86700e97 100644
--- a/contrib/Dockerfile.test
+++ b/contrib/Dockerfile.test
@@ -34,7 +34,7 @@
 #   docker run --privileged --group-add keep-groups -v ./critest_exit_code.txt:/tmp/critest_exit_code.txt containerd-test
 # ------------------------------------------------------------------------------
 
-ARG GOLANG_VERSION=1.26.5
+ARG GOLANG_VERSION=1.26.6
 ARG GOLANG_IMAGE=golang
 
 FROM ${GOLANG_IMAGE}:${GOLANG_VERSION} AS golang
diff --git a/contrib/fuzz/oss_fuzz_build.sh b/contrib/fuzz/oss_fuzz_build.sh
index f2df1a3c865d6..bd67f60238040 100755
--- a/contrib/fuzz/oss_fuzz_build.sh
+++ b/contrib/fuzz/oss_fuzz_build.sh
@@ -39,11 +39,11 @@ compile_fuzzers() {
 
 apt-get update && apt-get install -y wget
 cd $SRC
-wget --quiet https://go.dev/dl/go1.26.5.linux-amd64.tar.gz
+wget --quiet https://go.dev/dl/go1.26.6.linux-amd64.tar.gz
 
 mkdir temp-go
 rm -rf /root/.go/*
-tar -C temp-go/ -xzf go1.26.5.linux-amd64.tar.gz
+tar -C temp-go/ -xzf go1.26.6.linux-amd64.tar.gz
 mv temp-go/go/* /root/.go/
 cd $SRC/containerd
 
diff --git a/go.mod b/go.mod
index 7c7734df78201..7f2bc15a042d0 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/containerd/containerd/v2
 
-go 1.26.3
+go 1.26.6
 
 require (
 	dario.cat/mergo v1.0.2
diff --git a/script/setup/prepare_env_windows.ps1 b/script/setup/prepare_env_windows.ps1
index dec9c4bd8a32d..9246699458165 100644
--- a/script/setup/prepare_env_windows.ps1
+++ b/script/setup/prepare_env_windows.ps1
@@ -5,7 +5,7 @@
 # lived test environment.
 Set-MpPreference -DisableRealtimeMonitoring:$true
 
-$PACKAGES= @{ mingw = "10.2.0"; git = ""; golang = "1.26.5"; make = ""; nssm = "" }
+$PACKAGES= @{ mingw = "10.2.0"; git = ""; golang = "1.26.6"; make = ""; nssm = "" }
 
 Write-Host "Downloading chocolatey package"
 curl.exe -L "https://packages.chocolatey.org/chocolatey.0.10.15.nupkg" -o 'c:\choco.zip'
diff --git a/script/vm/provision.sh b/script/vm/provision.sh
index aee720f650427..daaaa3b48c3e1 100755
--- a/script/vm/provision.sh
+++ b/script/vm/provision.sh
@@ -32,7 +32,7 @@ fi
 script_dir="$(cd -- "$(dirname -- "$0")" > /dev/null 2>&1; pwd -P)"
 containerd_dir="$(cd -- "${script_dir}/../.." > /dev/null 2>&1; pwd -P)"
 
-: "${GO_VERSION:=1.26.5}"
+: "${GO_VERSION:=1.26.6}"
 : "${RUNC_FLAVOR:=runc}"
 : "${SELINUX:=Enforcing}"
 : "${INSTALL_PACKAGES:=}"