diff --git a/.golangci.yml b/.golangci.yml
index e3305ec..66bc232 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -25,7 +25,7 @@ linters-settings:
   gocyclo:
     min-complexity: 15
   gofumpt:
-    lang-version: 1.19
+    lang-version: 1.20
   gosec:
     excludes:
       - G306 # Expect WriteFile permissions to be 0600 or less
diff --git a/.travis.yml b/.travis.yml
index aa11083..6695f13 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: go
 go:
-- 1.19
+- 1.20
 
 before_install:
 - go install -v github.com/mattn/goveralls@latest
diff --git a/Dockerfile b/Dockerfile
index 4bacc28..190a67b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.19 AS build
+FROM golang:1.20 AS build
 # VERSION should be specified via the --build-arg flag as a branch,
 # a tag, or a short git commit.
 ARG VERSION=unspecified
diff --git a/go.mod b/go.mod
index 744f47c..0b678a7 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,9 @@
 module github.com/m-lab/jostler
 
-go 1.19
+go 1.20
 
 require (
+	cloud.google.com/go v0.104.0
 	cloud.google.com/go/bigquery v1.43.0
 	cloud.google.com/go/storage v1.27.0
 	github.com/googleapis/google-cloud-go-testing v0.0.0-20191008195207-8e1d251e947d
@@ -13,7 +14,6 @@ require (
 )
 
 require (
-	cloud.google.com/go v0.104.0 // indirect
 	cloud.google.com/go/compute v1.10.0 // indirect
 	cloud.google.com/go/iam v0.5.0 // indirect
 	github.com/araddon/dateparse v0.0.0-20200409225146-d820a6159ab1 // indirect
diff --git a/go.sum b/go.sum
index bbe2507..2e9667a 100644
--- a/go.sum
+++ b/go.sum
@@ -116,8 +116,6 @@ github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFB
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/m-lab/go v0.1.64 h1:8PpCUBlSH59YWQleXxIVZNlmz0lS8hzJWtCiOHNJcdI=
-github.com/m-lab/go v0.1.64/go.mod h1:O1D/EoVarJ8lZt9foANcqcKtwxHatBzUxXFFyC87aQQ=
 github.com/m-lab/go v0.1.66 h1:adDJILqKBCkd5YeVhCrrjWkjoNRtDzlDr6uizWu5/pE=
 github.com/m-lab/go v0.1.66/go.mod h1:O1D/EoVarJ8lZt9foANcqcKtwxHatBzUxXFFyC87aQQ=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=