diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0b83bd71d..aa95ceb89 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,25 +1,33 @@
 name: CI
 
-on: [pull_request]
+on:
+  pull_request:
 
 jobs:
   build:
-
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version:
+        - 1.20 # current
+        - 1.21 # next
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set up Go
-      uses: actions/setup-go@v1
+      id: setup-go
+      uses: actions/setup-go@v3
       with:
-        go-version: 1.17
+        go-version: ${{ matrix.go-version }}
 
     - name: Build
       run: script/cibuild
 
+    # only upload binary artifact for current version
     - name: Upload gh-ost binary artifact
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v3
+      if: ${{ startsWith(steps.setup-go.outputs.go-version, '1.20') }}
       with:
         name: gh-ost
         path: bin/gh-ost
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 4fa20813a..d49dc160f 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
         
     - name: Initialize CodeQL 
       uses: github/codeql-action/init@v2
diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index 07fa01d89..7e5aa3ac9 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -13,10 +13,10 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v3
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.17
-      - uses: actions/checkout@v3
+          go-version-file: go.mod
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:
diff --git a/.github/workflows/replica-tests.yml b/.github/workflows/replica-tests.yml
index f2a52ece8..4f49cae35 100644
--- a/.github/workflows/replica-tests.yml
+++ b/.github/workflows/replica-tests.yml
@@ -5,20 +5,23 @@ on: [pull_request]
 jobs:
   build:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        version: [mysql-5.7.25,mysql-8.0.16,PerconaServer-8.0.21]
+        version:
+        - mysql-5.7.25
+        - mysql-8.0.16
+        - PerconaServer-8.0.21
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set up Go
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v3
       with:
-        go-version: 1.17
+        go-version-file: go.mod
 
     - name: migration tests
       env:
         TEST_MYSQL_VERSION: ${{ matrix.version }}
-      run:  script/cibuild-gh-ost-replica-tests
+      run: script/cibuild-gh-ost-replica-tests
diff --git a/Dockerfile.packaging b/Dockerfile.packaging
index 96927413e..efb5a2f7c 100644
--- a/Dockerfile.packaging
+++ b/Dockerfile.packaging
@@ -1,4 +1,4 @@
-FROM golang:1.17-stretch
+FROM golang:1.20-bullseye
 
 # Update stretch repositories
 RUN sed -i -e 's/deb.debian.org/archive.debian.org/g' \
diff --git a/Dockerfile.test b/Dockerfile.test
index e031d6023..57f194e98 100644
--- a/Dockerfile.test
+++ b/Dockerfile.test
@@ -1,4 +1,4 @@
-FROM golang:1.17-stretch
+FROM golang:1.20-bullseye
 LABEL maintainer="github@github.com"
 
 #Update stretch repositories
diff --git a/README.md b/README.md
index e21344dcd..b876088ff 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,7 @@ Please see [Coding gh-ost](doc/coding-ghost.md) for a guide to getting started d
 
 [Download latest release here](https://github.com/github/gh-ost/releases/latest)
 
-`gh-ost` is a Go project; it is built with Go `1.15` and above. To build on your own, use either:
+`gh-ost` is a Go project; it is built with Go `1.16` and above. To build on your own, use either:
 - [script/build](https://github.com/github/gh-ost/blob/master/script/build) - this is the same build script used by CI hence the authoritative; artifact is `./bin/gh-ost` binary.
 - [build.sh](https://github.com/github/gh-ost/blob/master/build.sh) for building `tar.gz` artifacts in `/tmp/gh-ost`
 
diff --git a/go.mod b/go.mod
index 1134e71f2..d54a79943 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/github/gh-ost
 
-go 1.17
+go 1.20
 
 require (
 	github.com/go-ini/ini v1.62.0
diff --git a/go.sum b/go.sum
index 8ce5fa935..995267c33 100644
--- a/go.sum
+++ b/go.sum
@@ -66,7 +66,6 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
@@ -82,51 +81,28 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
 golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
 golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
 golang.org/x/term v0.13.0 h1:bb+I9cTfFazGW51MZqBVmZy7+JEJMouUHTUSKVQLBek=
 golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
 golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -137,8 +113,6 @@ golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20201125231158-b5590deeca9b/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/go/base/load_map.go b/go/base/load_map.go
index 2a07b7f5f..cfe92154b 100644
--- a/go/base/load_map.go
+++ b/go/base/load_map.go
@@ -23,7 +23,8 @@ func NewLoadMap() LoadMap {
 
 // NewLoadMap parses a `--*-load` flag (e.g. `--max-load`), which is in multiple
 // key-value format, such as:
-//   'Threads_running=100,Threads_connected=500'
+//
+//	'Threads_running=100,Threads_connected=500'
 func ParseLoadMap(loadList string) (LoadMap, error) {
 	result := NewLoadMap()
 	if loadList == "" {
diff --git a/script/ensure-go-installed b/script/ensure-go-installed
index 3d33ae4e1..a39998c13 100755
--- a/script/ensure-go-installed
+++ b/script/ensure-go-installed
@@ -1,13 +1,13 @@
 #!/bin/bash
 
-PREFERRED_GO_VERSION=go1.17.11
-SUPPORTED_GO_VERSIONS='go1.1[567]'
+PREFERRED_GO_VERSION=go1.18.5
+SUPPORTED_GO_VERSIONS='go1.1[6789]'
 
 GO_PKG_DARWIN=${PREFERRED_GO_VERSION}.darwin-amd64.pkg
-GO_PKG_DARWIN_SHA=4f924c534230de8f0e1c7369f611c0310efd21fc2d9438b13bc2703af9dda25a
+GO_PKG_DARWIN_SHA=7a27dbe31c9fdd98be83ed6ce76fa5474044a2d960e2f9db8fa92b256dda2e58
 
 GO_PKG_LINUX=${PREFERRED_GO_VERSION}.linux-amd64.tar.gz
-GO_PKG_LINUX_SHA=d69a4fe2694f795d8e525c72b497ededc209cb7185f4c3b62d7a98dd6227b3fe
+GO_PKG_LINUX_SHA=9e5de37f9c49942c601b191ac5fba404b868bfc21d446d6960acc12283d6e5f2
 
 export ROOTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )/.." && pwd )"
 cd $ROOTDIR