diff --git a/Dockerfile b/Dockerfile
index 6bd07caa7b..143dec6407 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,7 +25,7 @@
 #
 
 ARG CROSS="false"
-ARG GO_VERSION=1.12.8
+ARG GO_VERSION=1.12.9
 ARG DEBIAN_FRONTEND=noninteractive
 
 FROM golang:${GO_VERSION}-stretch AS base
diff --git a/Dockerfile.e2e b/Dockerfile.e2e
index cd8742a8f0..44765164b1 100644
--- a/Dockerfile.e2e
+++ b/Dockerfile.e2e
@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.12.8
+ARG GO_VERSION=1.12.9
 
 FROM golang:${GO_VERSION}-alpine AS base
 
diff --git a/Dockerfile.simple b/Dockerfile.simple
index b2ccfa4bf0..3ecccd86cd 100644
--- a/Dockerfile.simple
+++ b/Dockerfile.simple
@@ -5,7 +5,7 @@
 
 # This represents the bare minimum required to build and test Docker.
 
-ARG GO_VERSION=1.12.8
+ARG GO_VERSION=1.12.9
 
 FROM golang:${GO_VERSION}-stretch
 
diff --git a/Dockerfile.windows b/Dockerfile.windows
index 741f5fcc3e..f18b5260cc 100644
--- a/Dockerfile.windows
+++ b/Dockerfile.windows
@@ -165,7 +165,7 @@ FROM microsoft/windowsservercore
 # Use PowerShell as the default shell
 SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
 
-ARG GO_VERSION=1.12.8
+ARG GO_VERSION=1.12.9
 
 # Environment variable notes:
 #  - GO_VERSION must be consistent with 'Dockerfile' used by Linux.