diff --git a/.travis.yml b/.travis.yml
index 925e23b1a5..f64d2bb033 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,7 @@ jobs:
     - stage: lint
       os: linux
       dist: bionic
-      go: 1.20.x
+      go: 1.21.x
       env:
         - lint
       git:
@@ -28,7 +28,7 @@ jobs:
       os: linux
       arch: amd64
       dist: bionic
-      go: 1.20.x
+      go: 1.21.x
       env:
         - docker
       services:
@@ -45,7 +45,7 @@ jobs:
       os: linux
       arch: arm64
       dist: bionic
-      go: 1.20.x
+      go: 1.21.x
       env:
         - docker
       services:
@@ -63,7 +63,7 @@ jobs:
       os: linux
       dist: bionic
       sudo: required
-      go: 1.20.x
+      go: 1.21.x
       env:
         - azure-linux
         - GO111MODULE=on
@@ -97,7 +97,7 @@ jobs:
     - stage: build
       if: type = push
       os: osx
-      go: 1.20.x
+      go: 1.21.x
       env:
         - azure-osx
         - GO111MODULE=on
@@ -112,7 +112,7 @@ jobs:
       os: linux
       arch: amd64
       dist: bionic
-      go: 1.20.x
+      go: 1.21.x
       env:
         - GO111MODULE=on
       script:
@@ -123,7 +123,7 @@ jobs:
       os: linux
       arch: arm64
       dist: bionic
-      go: 1.19.x
+      go: 1.20.x
       env:
         - GO111MODULE=on
       script:
@@ -132,7 +132,7 @@ jobs:
     - stage: build
       os: linux
       dist: bionic
-      go: 1.19.x
+      go: 1.20.x
       env:
         - GO111MODULE=on
       script:
@@ -143,7 +143,7 @@ jobs:
       if: type = cron || (type = push && tag ~= /^v[0-9]/)
       os: linux
       dist: bionic
-      go: 1.20.x
+      go: 1.21.x
       env:
         - ubuntu-ppa
         - GO111MODULE=on
@@ -167,7 +167,7 @@ jobs:
       if: type = cron
       os: linux
       dist: bionic
-      go: 1.20.x
+      go: 1.21.x
       env:
         - azure-purge
         - GO111MODULE=on
@@ -181,7 +181,7 @@ jobs:
       if: type = cron
       os: linux
       dist: bionic
-      go: 1.20.x
+      go: 1.21.x
       env:
         - GO111MODULE=on
       script:
diff --git a/Dockerfile b/Dockerfile
index 1951fed8ef..ed69a04789 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ARG VERSION=""
 ARG BUILDNUM=""
 
 # Build Geth in a stock Go builder container
-FROM golang:1.20-alpine as builder
+FROM golang:1.21-alpine as builder
 
 RUN apk add --no-cache gcc musl-dev linux-headers git
 
diff --git a/build/checksums.txt b/build/checksums.txt
index 6e33f456d1..ea92437e87 100644
--- a/build/checksums.txt
+++ b/build/checksums.txt
@@ -1,19 +1,20 @@
 # This file contains sha256 checksums of optional build dependencies.
 
-2c5ee9c9ec1e733b0dbbc2bdfed3f62306e51d8172bf38f4f4e542b27520f597  go1.20.7.src.tar.gz
-785170eab380a8985d53896808b0a71336d0ea60e0a26099b4ccec77798b1cf4  go1.20.7.darwin-amd64.tar.gz
-eea1e7e4c2f75c72629050e6a6c7c46c446d64056732a7787fb3ba16ace1982e  go1.20.7.darwin-arm64.tar.gz
-d8cff0357ac24eb06f3f280535397eeaacf95611d29f9b2abc3060f3d6dce3b4  go1.20.7.freebsd-386.tar.gz
-26918dcebf474a9e81ccf9f648cdf36968dfb76b481518cf615d78455dda4416  go1.20.7.freebsd-amd64.tar.gz
-ddb48145f05bda2f4617a22c979d4e94b22802cdb1a1fde1b1974e733b26f091  go1.20.7.linux-386.tar.gz
-f0a87f1bcae91c4b69f8dc2bc6d7e6bfcd7524fceec130af525058c0c17b1b44  go1.20.7.linux-amd64.tar.gz
-44781ae3b153c3b07651d93b6bc554e835a36e2d72a696281c1e4dad9efffe43  go1.20.7.linux-arm64.tar.gz
-7cc231b415b94f2f7065870a73f67dd2b0ec12b5a98052b7ee0121c42bc04f8d  go1.20.7.linux-armv6l.tar.gz
-6318a1db307c12b8afe68808bd6fae4fba1e558a85b958216096869ed506dcb3  go1.20.7.linux-ppc64le.tar.gz
-26aea2ede8722ceecbd9db883328a8d963136fd96c11dacc356c44c4c19c6515  go1.20.7.linux-s390x.tar.gz
-5b0ef6f58d3e04d6cc003aa98e9172f41ba9e091b1c98e7339b41c4c87fb78a1  go1.20.7.windows-386.zip
-736dc6c7fcab1c96b682c8c93e38d7e371e62a17d34cb2c37d451a1147f66af9  go1.20.7.windows-amd64.zip
-fc6f79c1e1ed9e506c65f2112ac4e387479916f1accb0d046a6a19ff6938baa5  go1.20.7.windows-arm64.zip
+818d46ede85682dd551ad378ef37a4d247006f12ec59b5b755601d2ce114369a  go1.21.0.src.tar.gz
+b314de9f704ab122c077d2ec8e67e3670affe8865479d1f01991e7ac55d65e70  go1.21.0.darwin-amd64.tar.gz
+3aca44de55c5e098de2f406e98aba328898b05d509a2e2a356416faacf2c4566  go1.21.0.darwin-arm64.tar.gz
+312a0065714a50862af714e7a5b3fbbd70fe68f905ffb9bcc56d42eadf6bffab  go1.21.0.freebsd-386.tar.gz
+b8eaa36654625df799654f77f4af0ea7bd9e5e760ebe86e68fe7c484748ae995  go1.21.0.freebsd-amd64.tar.gz
+0e6f378d9b072fab0a3d9ff4d5e990d98487d47252dba8160015a61e6bd0bcba  go1.21.0.linux-386.tar.gz
+d0398903a16ba2232b389fb31032ddf57cac34efda306a0eebac34f0965a0742  go1.21.0.linux-amd64.tar.gz
+f3d4548edf9b22f26bbd49720350bbfe59d75b7090a1a2bff1afad8214febaf3  go1.21.0.linux-arm64.tar.gz
+e377a0004957c8c560a3ff99601bce612330a3d95ba3b0a2ae144165fc87deb1  go1.21.0.linux-armv6l.tar.gz
+e938ffc81d8ebe5efc179240960ba22da6a841ff05d5cab7ce2547112b14a47f  go1.21.0.linux-ppc64le.tar.gz
+be7338df8e5d5472dfa307b0df2b446d85d001b0a2a3cdb1a14048d751b70481  go1.21.0.linux-s390x.tar.gz
+af920fbb74fc3d173118dc3cc35f02a709c1de642700e92a91a7d16981df3fec  go1.21.0.windows-386.zip
+732121e64e0ecb07c77fdf6cc1bc5ce7b242c2d40d4ac29021ad4c64a08731f6  go1.21.0.windows-amd64.zip
+41342f5a0f8c083b14c68bde738ddcd313a4f53a5854bfdfab47f0e88247de12  go1.21.0.windows-arm64.zip
+
 
 fba08acc4027f69f07cef48fbff70b8a7ecdfaa1c2aba9ad3fb31d60d9f5d4bc  golangci-lint-1.51.1-darwin-amd64.tar.gz
 75b8f0ff3a4e68147156be4161a49d4576f1be37a0b506473f8c482140c1e7f2  golangci-lint-1.51.1-darwin-arm64.tar.gz
diff --git a/build/ci.go b/build/ci.go
index 3bb7e4e64f..8b2b8fa9c1 100644
--- a/build/ci.go
+++ b/build/ci.go
@@ -139,7 +139,7 @@ var (
 	// This is the version of Go that will be downloaded by
 	//
 	//     go run ci.go install -dlgo
-	dlgoVersion = "1.20.7"
+	dlgoVersion = "1.21.0"
 
 	// This is the version of Go that will be used to bootstrap the PPA builder.
 	//
diff --git a/go.mod b/go.mod
index bd0e9cd1d9..5c3757aa1a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/ethereum/go-ethereum
 
-go 1.19
+go 1.20
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v0.3.0